The abundance and spatial distribution of the Eurasian рygmy owl, Glaucidium passerinum (Strigiformes, Strigidae), in Rivnenskyi Nature Reserve, Ukraine
The breeding status and abundance of the Eurasian pygmy owl Glaucidium passerinum (Linnaeus, 1758) in Rivnenskyi Nature Reserve was estimated based on results of field research conducted in 2013 to 2018. We suggest the nesting of 9 to 12 pairs of the Eurasian pygmy owl in the territory of the Reserv...
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irk-123456789-1613222019-12-06T01:26:27Z The abundance and spatial distribution of the Eurasian рygmy owl, Glaucidium passerinum (Strigiformes, Strigidae), in Rivnenskyi Nature Reserve, Ukraine Franchuk, M.V. Yanenko, V.O. The breeding status and abundance of the Eurasian pygmy owl Glaucidium passerinum (Linnaeus, 1758) in Rivnenskyi Nature Reserve was estimated based on results of field research conducted in 2013 to 2018. We suggest the nesting of 9 to 12 pairs of the Eurasian pygmy owl in the territory of the Reserve, in particular 7 to 10 pairs in Perebrody site, 1 or 2 pairs in Somyne site and a single pair in Syra Pohonia site. The Eurasian pygmy owl has diurnal activity, which facilitates the species’ identification during field studies. It was noted that the voice activity of the tawny owl (Strix aluco), the great grey owl (Strix nebulosa) and the northern goshawk (Accipiter gentilis) leads to the termination of the pygmy owl’s vocalization. Установлен современный гнездовой статус и численность воробьиного сыча, Glaucidium passerinum (Linnaeus, 1758), на территории Ровенского природного заповедника по результатам полевых исследований 2013–2018 гг. Сделано предположение о гнездовании 9–12 пар воробьиного сыча на территории массивов заповедника (7–10 пар в массиве Переброды; 1–2 пар — Сомыне, одна пара на массиве Сырая Погоня). Воробьиный сыч на территории исследования проявляет дневную активность, чем облегчает полевые работы по его идентификации. Отмечено, что на прекращение вокализации воробьиного сыча влияет активизация токования серой неясыти (Strix aluco Linnaeus, 1758), бородатой неясыти (Strix nebulosa Johann Reinhold Forster, 1772) и ястреба-тетеревятника (Accipiter gentilis Linnaeus, 1758). Встановлено сучасний гніздовий статус та чисельність сичика-горобця, Glaucidium passerinum (Linnaeus, 1758), на території Рівненського природного заповідника за результатами польових обстежень 2013–2018 рр. Припускається гніздування 9–12 пар сичика-горобця на масивах заповідника (7–10 пар на масиві Переброди; 1–2 пар — Сомине, одна пара на масиві Сира Погоня). Сичик-горобець на території дослідження проявляє денну активність, що полегшує польові роботи по його ідентифікації. Відмічено, що на припинення вокалізації сичика-горобця впливає активізація токування сови сірої (Strix aluco Linnaeus, 1758), бородатої (Strix nebulosa Johann Reinhold Forster, 1772) та яструба великого (Accipiter gentilis Linnaeus, 1758). 2018 Article The abundance and spatial distribution of the Eurasian рygmy owl, Glaucidium passerinum (Strigiformes, Strigidae), in Rivnenskyi Nature Reserve, Ukraine / M.V. Franchuk, V.O. Yanenko // Збірник праць Зоологічного музею. — 2018. — Вип. 49 — С. 16-23. — Бібліогр.: 26 назв. — англ. 0132-1102 http://dspace.nbuv.gov.ua/handle/123456789/161322 598.2:502.4(477.81) en Збірник праць Зоологічного музею Національний Науково-природничий музей НАН України |
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The breeding status and abundance of the Eurasian pygmy owl Glaucidium passerinum (Linnaeus, 1758) in Rivnenskyi Nature Reserve was estimated based on results of field research conducted in 2013 to 2018. We suggest the nesting of 9 to 12 pairs of the Eurasian pygmy owl in the territory of the Reserve, in particular 7 to 10 pairs in Perebrody site, 1 or 2 pairs in Somyne site and a single pair in Syra Pohonia site. The Eurasian pygmy owl has diurnal activity, which facilitates the species’ identification during field studies. It was noted that the voice activity of the tawny owl (Strix aluco), the great grey owl (Strix nebulosa) and the northern goshawk (Accipiter gentilis) leads to the termination of the pygmy owl’s vocalization. |
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Franchuk, M.V. Yanenko, V.O. |
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Franchuk, M.V. Yanenko, V.O. The abundance and spatial distribution of the Eurasian рygmy owl, Glaucidium passerinum (Strigiformes, Strigidae), in Rivnenskyi Nature Reserve, Ukraine Збірник праць Зоологічного музею |
| author_facet |
Franchuk, M.V. Yanenko, V.O. |
| author_sort |
Franchuk, M.V. |
| title |
The abundance and spatial distribution of the Eurasian рygmy owl, Glaucidium passerinum (Strigiformes, Strigidae), in Rivnenskyi Nature Reserve, Ukraine |
| title_short |
The abundance and spatial distribution of the Eurasian рygmy owl, Glaucidium passerinum (Strigiformes, Strigidae), in Rivnenskyi Nature Reserve, Ukraine |
| title_full |
The abundance and spatial distribution of the Eurasian рygmy owl, Glaucidium passerinum (Strigiformes, Strigidae), in Rivnenskyi Nature Reserve, Ukraine |
| title_fullStr |
The abundance and spatial distribution of the Eurasian рygmy owl, Glaucidium passerinum (Strigiformes, Strigidae), in Rivnenskyi Nature Reserve, Ukraine |
| title_full_unstemmed |
The abundance and spatial distribution of the Eurasian рygmy owl, Glaucidium passerinum (Strigiformes, Strigidae), in Rivnenskyi Nature Reserve, Ukraine |
| title_sort |
abundance and spatial distribution of the eurasian рygmy owl, glaucidium passerinum (strigiformes, strigidae), in rivnenskyi nature reserve, ukraine |
| publisher |
Національний Науково-природничий музей НАН України |
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2018 |
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http://dspace.nbuv.gov.ua/handle/123456789/161322 |
| citation_txt |
The abundance and spatial distribution of the Eurasian рygmy owl, Glaucidium passerinum (Strigiformes, Strigidae), in Rivnenskyi Nature Reserve, Ukraine / M.V. Franchuk, V.O. Yanenko // Збірник праць Зоологічного музею. — 2018. — Вип. 49 — С. 16-23. — Бібліогр.: 26 назв. — англ. |
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| fulltext |
16 Зб. пр. Зоол. муз., 49, 2018
M. V. Franchuk, V. O. Yanenko
Introduction
The Eurasian pygmy owl Glaucidium passerinum (Linnaeus, 1758) is
listed in the Red Data Book of Ukraine as a vulnerable species (Bashta,
Kuzmenko, 2009), and included into the species lists of Bern Conven-
tion (Appendix ІІ), Birds Directive (Appendix І), IUCN (least concern),
and CITES (Appendix ІІ) (BirdLife…, 2015). Considering that the
species is under protection on different levels of national and interna-
tional law, the Eurasian pygmy owl is an object of permanent monitor-
© M. V. Franchuk, V. O. Yanenko, 2018
UDC 598.2:502.4(477.81)
M. V. Franchuk
1
, V. O. Yanenko
2
1Rivnenskyi Nature Reserve, Rozvylka tract,
Sarny, Rivne Oblast, 34503 Ukraine
E-mail: m_franchuk@ukr.net
2National Museum of Natural History, NAS of Ukraine
B. Khmelnytsky St. 15, Kyiv, 01030 Ukraine
E-mail: ornithologist.ua@gmail.com
THE ABUNDANCE AND SPATIAL
DISTRIBUTION OF THE EURASIAN
PYGMY OWL, GLAUCIDIUM PASSERINUM
(STRIGIFORMES, STRIGIDAE), IN RIVNENSKYI
NATURE RESERVE, UKRAINE
Збірник праць Зоологічного музею, 49: 16–23, 2018
The breeding status and abundance of the Eurasian pygmy owl Glaucidium passerinum
(Linnaeus, 1758) in Rivnenskyi Nature Reserve was estimated based on results of field research
conducted in 2013 to 2018. We suggest the nesting of 9 to 12 pairs of the Eurasian pygmy owl in
the territory of the Reserve, in particular 7 to 10 pairs in Perebrody site, 1 or 2 pairs in Somyne
site and a single pair in Syra Pohonia site. The Eurasian pygmy owl has diurnal activity, which
facilitates the species’ identification during field studies. It was noted that the voice activity of
the tawny owl (Strix aluco), the great grey owl (Strix nebulosa) and the northern goshawk
(Accipiter gentilis) leads to the termination of the pygmy owl’s vocalization.
K e y w o r d s: Glaucidium passerinum, pygmy owl, breeding territory, daily activity, spatial
distribution, abundance, Rivnenskyi Nature Reserve, Polissia.
mailto:m_franchuk@ukr.net
mailto:ornithologist.ua@gmail.com
Zb. prac’ Zool. muz. (Kiïv), 49, 2018 17
The abundance and spatial distribution of the Eurasian Pygmy Owl ...
ing and conservation. This is especially relevant now since the fourth edition of the Red
Data Book of Ukraine is to be published in 2019.
Unlike other protected owl species of the Ukrainian fauna, the Eurasian pygmy owl
remains a scarcely studied species known from Polissia by few number of nesting locali-
ties (Bashta, Kuzmenko, 2009). Therefore, the aim of our research was to clarify the
breeding status and abundance of the Eurasian pygmy owl in the territory of Rivnenskyi
Nature Reserve.
Material and methods
Owl censuses were conducted from 2013 to 2018 in Rivnenskyi Nature Reserve,
Ukraine and its vicinities to a 2 km distance from the Reserve’s borders (Fig. 1).
Rivnenskyi Nature Reserve is located in the north of Rivne Oblast, Ukraine and consists
of the following four sites: Somyne (Sarny Raion; coordinates of site centre
N 51.415960 E 26.909066), Perebrody (Dubrovytsia and Rokytne Raions; coordinates
of site centre N 51.709404 E 27.141858), Syra Pohonia (Rokytne Raion; coordinates of
site centre N 51.513679 E 27.214423), and Biloozersky (Volodymyrets Raion; coordi-
nates of site centre N 51.508019 E 25.712257). In total, the four sites area is 42,289 ha.
According to geobotanical division, all sites belong to Poliska Subprovince (Volynske
Polissia), East European Province of the European broadleaf forest region (Didukh et al.,
2007). The Reserve’s territory is characterized by a high portion of wetlands (51.06 %)
and forests (46.70 %) (Materials…, 2017). Forests are highly fragmented and have
different levels of humidity.
Censuses of the Eurasian pygmy owl were conducted in March and April considering
that it is the period of the species’ most intense vocalisation in Polissia (Zhyla, Kuzmen-
ko, 1998). During censuses, the method of playing phonograms was used, following the
recommendations by Holt and Hills (1987 as cited in Zhyla, Kuzmenko, 1998) and
Voronetsky et al. (1990).
Considering the fact of diurnal vocalisa-
tion activity of the species (Ryabitsev,
2001; Butyev et al., 2005), censuses were
conducted during the daytime. Phonograms
of the Eurasian pygmy owl were played by
a portable 10 V audio speaker in habitats
suitable for nesting. Such provocations
were performed in each kilometre of route,
and additionally in habitats estimated
suitable earlier, including forest sites with
a significant number of holes of the grey-
headed woodpecker (Picus canus) and the
black woodpecker (Dryocopus martius).
Thus, censuses covered 70–80 % of the
Reserve’s area suitable, in our opinion, for
nesting of the species.
Each locality of observation of the Eura-
sian pygmy owl was recorded with the
corresponding geographic coordinates and
each sighting was documented by photo or
video with subsequent description of
habitats, the species’ behaviour, and the
reaction of other bird species to the Eura-
sian pygmy owl’s phonogram.
The map on Fig. 1 was created in QGIS.
Fig. 1. Map of study sites. 1 – Somyne, 2 –
Perebrody, 3 – Syra Pohonia, 4 – Biloozersky.
18 Зб. пр. Зоол. муз., 49, 2018
M. V. Franchuk, V. O. Yanenko
Results and discussion
Analysis of literature sources
The Eurasian pygmy owl in Polissia. According to the latest data, the estimated nest-
ing abundance of the Eurasian pygmy owl in Ukraine is 150 to 350 pairs (Birds…, 2004;
Bashta, Kuzmenko, 2009), while the main part of the species’ population is concentrated
in the Ukrainian Carpathians (Bashta, Kuzmenko, 2009; Bokotey et al., 2010; Kuzmen-
ko et al., 2015). The species’ abundance in Polissia is not entirely clarified, which is
evidenced by single observations and new records during recent years (Knysh, Buga-
yev, 2009; Gnatyna, Shkaran, 2011; Domashevsky et al., 2012; Kuzmenko et al., 2016;
Domashevsky, 2017). According to Zhyla (1998), the Eurasian pygmy owl is the least
studied owl species in Polissia and this statement still stands after 20 years since its
publication. For the past 20 years, only fragmented data are available on the species’
nesting and sightings during breeding period. Such data mainly originate from protected
areas, where the fauna is permanently monitored. The nesting of the species was proved
only in the Polissian Nature Reserve, although courting males were observed in Rivnen-
skyi Nature Reserve and Desna–Starogutsky National Nature Park as well (Khymyn,
2006, 2009). Single records were reported from Pripyat-Stokhid National Nature Park,
Mizhrichinsky Regional Landscape Park (Kuzmenko et al, 2016), Shatsky National
Nature Park (Gnatina, Shkaran, 2011), Chornobyl Exclusion Zone, which since 2016
has been part of Chornobyl Radiation and Ecological Biosphere Reserve (Domashevsky
et al., 2012; Domashevsky, 2017), as well as from Left-bank Ukraine (Knysh, Buga-
yev, 2009).
The Eurasian pygmy owl in Rivnenskyi Nature Reserve. The species was first men-
tioned for Rivnenskyi Nature Reserve during data collection for the first edition of the
European Breeding Bird Atlas by the time the Reserve was created in 1999. According
to the Atlas, abundance of the species was estimated to 10 nesting pairs (1 to 10 pairs
according to the criteria used in the atlas), although exact affiliation of records to the
territory was absent (Gorban et al., 2003). During the Reserve’s fauna survey in 2005
to 2010, M. V. Khymyn first documented the presence of the species in Rivnenskyi
Nature Reserve in the breeding period. In particular, on 30 April 2006 in Somyne site a
male displaying territorial behaviour was observed (Khymyn, 2006; Chronicle…, 2006),
and a hollow used in previous year with remains of food storage was found as well in
Syra Pohonia site (Khymyn, 2009). However, the breeding of the species was not con-
firmed.
Results of field research
In the beginning of our research on the Eurasian pygmy owl (2013–2015), we suggested
the presence of 5 to 7 territorial males in the Reserve (Kuzmenko et al., 2016). Conduct-
ing a number of field studies, we obtained the following results, which we present
separately for each site of Rivnenskyi Nature Reserve.
Somyne. In total, two cases of observation of the species occurred in the breeding
period. The first was recorded in late April by M. V. Khymyn in 2006 (Khymyn, 2006),
and the second was recorded by us on 24 March 2016 at 3.30 pm, when we found a male
in the northwestern part of the site. This male responded to the phonogram, so did a
northern goshawk (Accipiter gentilis), which had a nest nearby. When the goshawk
revealed itself, the pygmy owl ceased vocalising. We assume that the Eurasian pygmy
owl occurred in this territory in previous years too. In March 2014, we found here two
roosts of the species with remains of pellets. Preliminary we can suggest the nesting of 1
or 2 pairs of the Eurasian pygmy owl in Somyne site.
Syra Pohonia. Literature sources mention only one observation of the species based
on a finding of its nest with remains of food stocks used in the previous year (Khymyn,
Zb. prac’ Zool. muz. (Kiïv), 49, 2018 19
The abundance and spatial distribution of the Eurasian Pygmy Owl ...
2009). During censuses in 2016 to 2018, signs of presence of the Eurasian pygmy owl in
this site were not revealed. Possibly, it is related to the fact that most of the site’s area is
afforested with a monoculture of the scots pine (Pinus sylvestris), and deciduous forests,
which are concentrated in the north of the site, were practically demolished as result of
large-scale fires in 2015–2016. Besides, those areas that, in our opinion, are suitable for
nesting are located within the nesting territory of raptors, which prey on the Eurasian
pygmy owl, including the northern goshawk and the tawny owl (Strix aluco). Therefore,
only based on the record by M. V. Khymyn we can assume the nesting of at least one
pair of the Eurasian pygmy owl in the site, more likely in its northern part.
Biloozersky. Signs of presence of the species here were not discovered. It is con-
firmed by both Khymyn’s (2014) data and our results for 2017–2018. However, this site
was the least covered by owl censuses, so the territory can be promising for further
research.
Perebrody. During research period, 7 facts of occurrence of the Eurasian pygmy
owl were discovered in the site. The species was first recorded in the territory by us in
2015, namely in Starosilske Forestry District. The list of records is given below.
5 March 2015 (at 22:00). Quarter 3, Starosilske Forestry District. One male in a
sparse middle-aged pine forest. The bird was displaying territorial behaviour
making unclear calls, which is probably related to the simultaneous vocalisation
of a tawny owl, which can threaten the Eurasian pygmy owl (Wiesner, 1987), 1.5
km far from the site of observation. The discovered pygmy owl was within the
nesting territory of the great grey owl (Strix nebulosa) (a pair of birds was sighted
300 m far from the nest, which in 2014 was occupied by the great grey owl). A
similar case was observed in the Polissian Nature Reserve earlier
(Zhyla, Kuzmenko, 1998), where the co-existence of three owl species — the
Eurasian pygmy owl, the boreal owl (Aegolius funereus), and the great grey owl
— was registered.
27 March 2015 (at 18:45). Quarter 40, Pivnichne Forestry District. Two males in a
middle-aged pine forest located nearby a bog. The first male was spotted after 1–2
minutes of playing the phonogram; it flew close actively and displayed courting
behaviour. Within 10 minutes the bird was attacked by another male, a fight
occurred after which the second male left the conflict scene. It suggests the territo-
riality of the Eurasian pygmy owl in this site. On the next day, 28 March 2015,
at 00.20 during repeated examination of this site, the male of the Eurasian pygmy
owl appeared within 1 minute after the provocation with the phonogram started,
and actively attacked the audio speaker. This fact confirms the diurnal activity of
the species observed earlier in other parts of its geographic range
(Ryabitsev, 2001; Butyev et al., 2005). However, the species could be character-
ized by a variation in the peak of daily activity within the breeding range. For
instance, researchers established three peaks of the species’ daily activity in
Europe such as matutinal (Austria), diurnal (Norway), and crepuscular (Finland)
(Mikkola, 1970 as cited in Butyev et al., 2005).
27 March 2015 (at 20:15). Quarter 27, Pivnichne Forsetry District. A courting
male was spotted in a mature pine forest with a significant amount of dead trees
and woody debris. After 2–3 min of playing the phonogram, the bird started to
display territorial behaviour and attacked the audio speaker. When we played the
phonogram one km away, a male of the great grey owl appeared displaying terri-
torial behaviour and pursuing us to the place where the Eurasian pygmy owl was
sighted. The Eurasian pygmy owl disappeared after 4–5 min of courting displayed
by the male of the great grey owl nearby. During an additional survey (7:45) on
the following day, we discovered a nest of the common buzzard (Buteo buteo)
20 Зб. пр. Зоол. муз., 49, 2018
M. V. Franchuk, V. O. Yanenko
30 m far from the site, which in this year was inhabited by the great grey owl (a
female was sitting in the nest, a male was courting nearby).
27 March 2015 (at 23:00). Quarter 28, Pivnichne Forestry District. One courting
male in a sparse mature pine forest. The bird responded to the phonogram and was
courting for 1–3 min, but ceased vocalising when a male of the great grey owl, in
response to the phonogram, also started courting 1 km far from the pygmy owl’s
location.
13 March 2017 (at 15.01). Quarter 19, Starosilske Forestry District. A male was
recorded, which responded to the phonogram.
14 March 2017 (at 9:45). Quarter 61, Pivnichne Forestry District. A male re-
sponded to the phonogram and was courting for a few minutes at the edge of a
mixed pine-birch-alder forest.
24 December 2017 (at 12.20). Quarter 64, Pivnichne Forestry District. A male
responded to the phonogram (flew close, to 10 m); it was actively courting and
attacking the audio speaker. This spot is located 1.5 far from the territory, where
the species was recorded in the breeding period (observed on 14 March 2017).
Fig. 2. Typical landscapes of Perebrody site.
Zb. prac’ Zool. muz. (Kiïv), 49, 2018 21
The abundance and spatial distribution of the Eurasian Pygmy Owl ...
All record localities of the Eurasian pygmy owl in Perebrody were associated with
fragmented pine forests growing on sand moraines (dunes) surrounded by bogs and with
patches of raised bogs within the fragments (Fig. 2).
Additionally, it should be mentioned that the Eurasian pygmy owl was also recorded
in Olmanskye Bolota Reserve, Belarus (Dombrovsky et al., 2014; Solovey, Yanuta,
2018), which neighbours with Rivnenskyi Nature Reserve and, in fact, the two resemble
a single forest–wetland complex. It allows suggesting that the species was present in
Perebrody before our investigation started. Our results indicate the nesting of 7 to
10 pairs of the Eurasian pygmy owl in Perebrody site.
Conclusions
Based on the results of our research we came to the following conclusions.
1. The Eurasian pygmy owl is a rare breeding species in Rivnenskyi Nature Reserve,
which is confirmed by both our results and literature sources.
2. Research results suggest the nesting of 9 to 12 pairs of the Eurasian pygmy owl in
the Reserve’s territory, in particular 7 to 10 pairs in Perebrody site, 1 or 2 pairs in
Somyne site, and a single pair in Syra Pohonia site.
3. Our results confirm the data from former publications on the diurnal activity of
the species during breeding period, which allows obtaining more accurate infor-
mation not only during night-time but also daytime censuses by playing phono-
grams using audio devices.
4. Obtained data confirm that the Eurasian pygmy owl ceases vocalising when its
natural enemies start to display courting behaviour, in particular the tawny owl,
the great grey owl, and the northern goshawk.
Acknowledgements
We would like to thank to our colleagues V. Ilchuk, R. Zhuravchak, O. Dobrynskyi,
S. Churylovych, I. Tarhonskyi, O. Kybukevych, P. Hryniuk, and T. Kryvulskyi for
participation in owl censuses in different times. The equipment used during field re-
search was the courtesy of Idea Wild organization. We also thank to Z. Barkaszi for
translating and editing of the manuscript.
The Eurasian Pygmy Owl Glaucidi-
um passerinum (Linnaeus, 1758). In: Akimov I. A. (Ed.) Red Data Book of Ukraine. Animals.
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official publication of the European Communities, 1–67.
Birds in Europe: population estimates, trends and conservation status. 2004. Cambridge: Bird
Life International, 1–162.
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М. В. Франчук, В. О. Яненко
ЧИСЕЛЬНІСТЬ ТА ПРОСТОРОВИЙ РОЗПОДІЛ СИЧИКА-ГОРОБЦЯ, GLAUCIDI-
UM PASSERINUM (STRIGIFORMES, STRIGIDAE), У РІВНЕНСЬКОМУ ПРИРОДНОМУ
ЗАПОВІДНИКУ (УКРАЇНА)
Встановлено сучасний гніздовий статус та чисельність сичика-горобця,
Glaucidium passerinum (Linnaeus, 1758), на території Рівненського природного заповідника
за результатами польових обстежень 2013–2018 рр. Припускається гніздування 9–12 пар
сичика-горобця на масивах заповідника (7–10 пар на масиві Переброди; 1–2 пар — Соми-
Zb. prac’ Zool. muz. (Kiïv), 49, 2018 23
The abundance and spatial distribution of the Eurasian Pygmy Owl ...
не, одна пара на масиві Сира Погоня). Сичик-горобець на території дослідження проявляє
денну активність, що полегшує польові роботи по його ідентифікації. Відмічено, що на
припинення вокалізації сичика-горобця впливає активізація токування сови сірої
(Strix aluco Linnaeus, 1758), бородатої (Strix nebulosa Johann Reinhold Forster, 1772) та
яструба великого (Accipiter gentilis Linnaeus, 1758).
К л ю ч о в і с л о в а: Glaucidium passerinum, сичик-горобець, гніздова територія, добова
активність, просторове розміщення, чисельність, Рівненський природний заповідник,
Полісся.
М. В. Франчук, В. А. Яненко
ЧИСЛЕННОСТЬ И ПРОСТРАНСТВЕННОЕ РАСПРЕДЕЛЕНИЕ ВОРОБЬИНОГО СЫЧА,
GLAUCIDIUM PASSERINUM (STRIGIFORMES, STRIGIDAE), В РОВЕНСКОМ ПРИРО-
ДНОМ ЗАПОВЕДНИКЕ (УКРАИНА)
Установлен современный гнездовой статус и численность воробьиного сыча, Glaucidi-
um passerinum (Linnaeus, 1758), на территории Ровенского природного заповедника по
результатам полевых исследований 2013–2018 гг. Сделано предположение о гнездовании
9–12 пар воробьиного сыча на территории массивов заповедника (7–10 пар в масси-
ве Переброды; 1–2 пар — Сомыне, одна пара на массиве Сырая Погоня). Воробьиный сыч
на территории исследования проявляет дневную активность, чем облегчает полевые
работы по его идентификации. Отмечено, что на прекращение вокализации воробьиного
сыча влияет активизация токования серой неясыти (Strix aluco Linnaeus, 1758), бородатой
неясыти (Strix nebulosa Johann Reinhold Forster, 1772) и ястреба-тетеревятника
(Accipiter gentilis Linnaeus, 1758).
К л ю ч е в ы е с л о в а: Glaucidium passerinum, воробьиный сыч, гнездовая территория,
суточная активность, пространственное распределение, численность, Ровенский природ-
ный заповедник, Полесье.
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