2018
Janic, B., Kamiński, M., Pieniak, D., Strawiak, M., & Zieliński, P. (2018). The First Documented Case of Northern Goshawk Accipiter gentilis Predation on Black Stork Ciconia nigra Nestlings. In . S. Cano-Alonso & K. Gopi Sundar (Eds.), VII International Conference on Black Stork Ciconia nigra: programme and abstracts (p. 28). Spain and Mysuru, India. , IUCN-SSC Stork, Ibis and Spoonbill Specialist Group. https://storkibisspoonbill.org/wp-conte ... tracts.pdf
Strazds, M., Ose,L. (2018). New Data on Black Stork Nest Predators in Latvia. In . S. Cano-Alonso & K. Gopi Sundar (Eds.), VII International Conference on Black Stork Ciconia nigra: programme and abstracts (p. 29). Spain and Mysuru, India. , IUCN-SSC Stork, Ibis and Spoonbill Specialist Group. https://storkibisspoonbill.org/wp-conte ... tracts.pdf
2021
Pine marten Martes martes and black stork Ciconia nigra encounters at black stork nests.
This paper concludes that pine martens visited black stork nests in central Poland during the breeding season but were scared away where storks were guarding the nests, and as a consequence no brood losses occurred. Generally, it sometimes happens that pine martens predate black stork nests, but the role of the pine marten as a predator of black stork nests might be smaller than previously thought.
Janic, B., Bańbura, J., Kamiński, M., Pieniak, D., Strawiak, M., Wójcik, J., Zieliński, P. (2021). Pine marten Martes martes and black stork Ciconia nigra encounters at black stork nests. Hystrix, the Italian Journal of Mammalogy, 32(1), 102-105. https://doi.org/10.4404/hystrix-00400-2020
http://www.italian-journal-of-mammalogy ... martes.pdf
Predators
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marika.solo
- Site Admin
- Posts: 20181
- Joined: 29 Sep 2021, 09:38
Re: Predators
2022
The avoidance of living in the vicinity of a top predator: the coexistence of the black stork and the white-tailed eagle in NE Poland.
Higlights
1. In the Augustów Forest (north-eastern Poland), the number of the black stork Ciconia nigra over 30 years has strongly declined and the distribution of its occupied nests has changed from almost solitary to clustered.
2. The colonization of the study area by the white-tailed eagle Haliaeetus albicilla was a plausible reason for the observed changes.
3. Storks avoided occupying nests less than 4.6 km from the white-tailed eagles’ nests, which can be defined as a safety distance. The determining role can be played by the fear of the predator more than by direct predation.
Zawadzki, Grzegorz & Zawadzki, J & Drozdowski, Stanisław & Zawadzka, Dorota. (2022). The avoidance of living in the vicinity of a top predator: the coexistence of the black stork and the white-tailed eagle in NE Poland. The European Zoological Journal. 89. 1223-1237. 10.1080/24750263.2022.2134478.
https://www.tandfonline.com/doi/epdf/10 ... ccess=true
The avoidance of living in the vicinity of a top predator: the coexistence of the black stork and the white-tailed eagle in NE Poland.
Higlights
1. In the Augustów Forest (north-eastern Poland), the number of the black stork Ciconia nigra over 30 years has strongly declined and the distribution of its occupied nests has changed from almost solitary to clustered.
2. The colonization of the study area by the white-tailed eagle Haliaeetus albicilla was a plausible reason for the observed changes.
3. Storks avoided occupying nests less than 4.6 km from the white-tailed eagles’ nests, which can be defined as a safety distance. The determining role can be played by the fear of the predator more than by direct predation.
Zawadzki, Grzegorz & Zawadzki, J & Drozdowski, Stanisław & Zawadzka, Dorota. (2022). The avoidance of living in the vicinity of a top predator: the coexistence of the black stork and the white-tailed eagle in NE Poland. The European Zoological Journal. 89. 1223-1237. 10.1080/24750263.2022.2134478.
https://www.tandfonline.com/doi/epdf/10 ... ccess=true
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marika.solo
- Site Admin
- Posts: 20181
- Joined: 29 Sep 2021, 09:38
Re: Predators
Goshawk attacks
continuously updated (some more info soon)
Lithuania, nest in in Kaišiadorys District WTE (!)
2025, July 03 - both chick knocked out (hatch: 03.05 - 61 days old) https://youtu.be/tlDz3mwwMbc?si=iTlhWyGLz40NfRAC by our UrszulaMN; documentation in our forum:
PL, Notecka Forest
2023 - all 4 (at intervals of about three weeks, all were taken by a hawk: the first on the 20th day of life, the last one, “Okruszek/Crumb,” on the 36th day) - documentation in our forum:
EE, Karula nest
2019, June 20 - 1 chick (35 days old) was knocked out of the nest by a goshawk during fierce attacks https://youtu.be/EYiZzgdW5K8?si=IW3PREGbazlnIlx- liznm
PL Dab(1) -nest
2019, June 7 - 1 chick (by igakr) https://youtu.be/lGDR73xyUB0
2018 - 0 (goshawk was here on July, 2 - 4 chicks were already big
https://youtu.be/E5sCjtSQ1OM by Liznm)
"In 2018, in other nest with web camera, the Goshawk depredated whole brood of five nestlings (age 26, 29, 35, 37 and 38 days)."
2017, June 10 and 13 - 2 of 4 - age 21 and 24 days (by Liznm): https://youtu.be/hViK1BkAFv4 and https://youtu.be/UkQ9vgg-Vq0, but attacked also on July 18 https://youtu.be/k5_LXeceI-4 (Woodek and Malwin)
2016, June 27, June 27 and June 30 - all 3 - age 23, 21 and 23 days (by prof. Piotr Zieliński) https://www.youtube.com/channel/UCkulO1 ... LhzJEvb9lg already not aviable
(described in "The First Documented Case of Northern Goshawk Accipiter gentilis Predation on Black Stork Ciconia nigra Nestlings" - see https://www.ciconianigra.sk/viewtopic.p ... 586#p26586
continuously updated (some more info soon)
Lithuania, nest in in Kaišiadorys District WTE (!)
2025, July 03 - both chick knocked out (hatch: 03.05 - 61 days old) https://youtu.be/tlDz3mwwMbc?si=iTlhWyGLz40NfRAC by our UrszulaMN; documentation in our forum:
PL, Notecka Forest
2023 - all 4 (at intervals of about three weeks, all were taken by a hawk: the first on the 20th day of life, the last one, “Okruszek/Crumb,” on the 36th day) - documentation in our forum:
EE, Karula nest
2019, June 20 - 1 chick (35 days old) was knocked out of the nest by a goshawk during fierce attacks https://youtu.be/EYiZzgdW5K8?si=IW3PREGbazlnIlx- liznm
PL Dab(1) -nest
2019, June 7 - 1 chick (by igakr) https://youtu.be/lGDR73xyUB0
2018 - 0 (goshawk was here on July, 2 - 4 chicks were already big
https://youtu.be/E5sCjtSQ1OM by Liznm)"In 2018, in other nest with web camera, the Goshawk depredated whole brood of five nestlings (age 26, 29, 35, 37 and 38 days)."
2017, June 10 and 13 - 2 of 4 - age 21 and 24 days (by Liznm): https://youtu.be/hViK1BkAFv4 and https://youtu.be/UkQ9vgg-Vq0, but attacked also on July 18 https://youtu.be/k5_LXeceI-4 (Woodek and Malwin)
2016, June 27, June 27 and June 30 - all 3 - age 23, 21 and 23 days (by prof. Piotr Zieliński) https://www.youtube.com/channel/UCkulO1 ... LhzJEvb9lg already not aviable
(described in "The First Documented Case of Northern Goshawk Accipiter gentilis Predation on Black Stork Ciconia nigra Nestlings" - see https://www.ciconianigra.sk/viewtopic.p ... 586#p26586