Data from: The owl gull: exclusively nocturnal foraging by the Swallow-tailed Gull Creagrus furcatus in Galápagos

Cruz S, Halpin LR, Proaño CB, Anderson DJ, Wikelski M. 2025. Data from: The owl gull: exclusively nocturnal foraging by the Swallow-tailed Gull Creagrus furcatus in Galápagos. Movebank Data Repository. https://doi.org/10.5441/001/1.605

Abstract

Colony-based observations indicate that Swallow-tailed Gulls Creagrus furcatus go to sea only at night. Here, we use GPS tracking technology to reveal the species' exclusively nocturnal foraging behavior at four colonies in the Galápagos Islands. All nocturnal trips proved to be foraging effort in pelagic waters 19-103 km from nests during breeding. While at sea, individuals spent approximately one-quarter of their time commuting, with half of the time dedicated to area-restricted search behavior. Three years of data from one colony indicate spatial fidelity to a general foraging area. Our research directly confirms that Swallow-tailed Gulls are the only obligate nocturnal foragers among Laridae and contributes to our understanding of nocturnal foraging strategies in tropical seabirds.

Keywords

Creagrus furcatus, animal movement, animal tracking, Creagrus furcatus, GPS, GPS logger, seabirds, spatial fidelity, Swallow-tailed Gull

Taxa

Taxon

Creagrus furcatus

Swallow-tailed Gull

Sensors

Sensor

GPS

DOIs of related Publications

https://doi.org/10.5038/2074-1235.53.1.1626

URI

https://datarepository.movebank.org/handle/10255/move.3271

BibTex

@misc{001/1_605,
  title = {Data from: The owl gull: exclusively nocturnal foraging by the Swallow-tailed Gull Creagrus furcatus in Galápagos},
  author = {Cruz, S and Halpin, LR and Proaño, CB and Anderson, DJ and Wikelski, M},
  year = {2025},
  URL = {http://dx.doi.org/10.5441/001/1.605},
  doi = {doi:10.5441/001/1.605},
  publisher = {Movebank data repository}
}

RIS

TY  - DATA
ID  - doi:10.5441/001/1.605
T1  - Data from: The owl gull: exclusively nocturnal foraging by the Swallow-tailed Gull Creagrus furcatus in Galápagos
AU  - Cruz, Sebastian
AU  - Halpin, Luke R.
AU  - Proaño, Carolina B.
AU  - Anderson, David J.
AU  - Wikelski, Martin
Y1  - 2025/03/12
KW  - Creagrus furcatus
KW  - animal foraging
KW  - animal movement
KW  - animal tracking
KW  - Creagrus furcatus
KW  - GPS
KW  - GPS logger
KW  - seabirds
KW  - spatial fidelity
KW  - Swallow-tailed Gull
KW  - Creagrus furcatus
PB  - Movebank data repository
UR  - http://dx.doi.org/10.5441/001/1.605
DO  - doi:10.5441/001/1.605
ER  -

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