Glaucous gull Elliott Coats-twilights

Baak JE, Patterson A, Gilchrist HG, Elliott KH. 2021. Glaucous gull Elliott Coats-twilights. Movebank Data Repository.
Many seabird populations differ in their migration strategies, where individuals travel in different directions to separate wintering areas. These migratory strategies may expose individuals to different threats, thus understanding migratory connectivity is crucial to assess risks to populations. Glaucous gulls (Larus hyperboreus) are generalist predators with flexible migratory behaviour that may alter these behaviours in response to climate change and anthropogenic activities, such as access to landfills, yet little is known about their migration. We deployed GPS and GLS tracking devices on glaucous gulls from Coats Island, Nunavut, Canada to obtain the first insights into their migration and habitat use outside of the breeding season. Gulls used two migration strategies during the non-breeding season, where one migrated as far as the Sea of Okhotsk in the Pacific and the remainder (n = 7) wintered in the North Atlantic. Gulls primarily overwintered in pelagic (56%) and coastal (38%) habitats. While in coastal habitats, one gull visited one landfill once, but visits increased with a 1 km and 3 km buffer, suggesting that urban glaucous gulls primarily used non-landfill habitats. This research can be used as a baseline to explore changes in migratory behaviour and inform future conservation of Arctic-breeding gulls.
animal movement,animal tracking,Arctic,avian migration,geolocator,glaucous gull,gps logger,Larus hyperboreus,light-level logger,seabirds
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DOIs of related Publications
  title = {Glaucous gull Elliott Coats-twilights},
  author = {Baak, JE and Patterson, A and Gilchrist, HG and Elliott, KH},
  year = {2021},
  URL = {},
  doi = {doi:10.5441/001/1.tj948m64/4},
  publisher = {Movebank data repository}
ID  - doi:10.5441/001/1.tj948m64/4
T1  - Glaucous gull Elliott Coats-twilights
AU  - Baak, Julia E.
AU  - Patterson, Allison
AU  - Gilchrist, H. Grant
AU  - Elliott, Kyle H.
Y1  - 2021/12/29
KW  - animal movement
KW  - animal tracking
KW  - Arctic
KW  - avian migration
KW  - geolocator
KW  - glaucous gull
KW  - gps logger
KW  - Larus hyperboreus
KW  - light-level logger
KW  - seabirds
KW  - Larus hyperboreus
PB  - Movebank data repository
UR  -
DO  - doi:10.5441/001/1.tj948m64/4
ER  -