Glaucous Gull Predation on Dovekies: Three New Hunting Methods

We describe three previously unreported methods that hunting glaucous gulls (Larus hyperboreus) use to capture nesting and fledgling dovekies (Alle alle). During the nesting period, the pale-gray and white gulls camouflaged themselves by perching with head lowered on remnant snow patches in the dove...

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Published in:ARCTIC
Main Authors: Jakubas, Dariusz, Wojczulanis-Jakubas, Katarzyna
Format: Article in Journal/Newspaper
Language:English
Published: The Arctic Institute of North America 2010
Subjects:
Online Access:https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66386
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author Jakubas, Dariusz
Wojczulanis-Jakubas, Katarzyna
author_facet Jakubas, Dariusz
Wojczulanis-Jakubas, Katarzyna
author_sort Jakubas, Dariusz
collection Unknown
container_issue 4
container_title ARCTIC
container_volume 63
description We describe three previously unreported methods that hunting glaucous gulls (Larus hyperboreus) use to capture nesting and fledgling dovekies (Alle alle). During the nesting period, the pale-gray and white gulls camouflaged themselves by perching with head lowered on remnant snow patches in the dovekie colony, trying to ambush flying adults. We observed two other glaucous gull hunting methods on the open fjord water after the dovekie fledglings had left the colony. Gulls approached young dovekies in a fast, low-level glide, presumably to surprise the prey, and attempted to snatch them from the water. Gulls also swam rapidly towards young dovekies, zigzagging among small ice floes, presumably to confuse the birds and catch them before they could dive. The methods described, representing technical foraging innovations, supplement the evidence that gulls are a bird family that displays a diverse foraging innovation repertoire. Nous décrivons trois méthodes jamais signalées auparavant auxquelles recourent les goélands bourgmestres (Larus hyperboreus) pour capturer les mergules nains (Alle alle) aux stades de la nidification et de l’envol. Pendant la période de nidification, les goélands gris clair et blancs se camouflagent en se rabaissant la tête dans les restes de bancs de neige au sein des colonies de mergules nains afin d’essayer de piéger les adultes capables de voler. Nous avons observé deux autres méthodes de chasse de la part des goélands bourgmestres sur les eaux libres du fjord une fois que les mergules nains prêts à l’envol ont quitté la colonie. Les goélands s’approchaient des jeunes mergules nains en glissant rapidement et à faible altitude, vraisemblablement pour surprendre leurs proies, et essayaient de les arracher de l’eau. Les goélands se mettaient aussi à nager rapidement vers les jeunes mergules nains, en zigzaguant entre les bancs de glace flottante, probablement pour mélanger les oiseaux et pour les attraper avant qu’ils n’aient le temps de plonger. Les méthodes ainsi décrites, qui ...
format Article in Journal/Newspaper
genre Alle alle
Arctic
Dovekie
Glaucous Gull
Goéland bourgmestre
Larus hyperboreus
mergule nain
genre_facet Alle alle
Arctic
Dovekie
Glaucous Gull
Goéland bourgmestre
Larus hyperboreus
mergule nain
geographic Nain
geographic_facet Nain
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language English
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op_source ARCTIC; Vol. 63 No. 4 (2010): December: 381–504; 468-470
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publishDate 2010
publisher The Arctic Institute of North America
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spelling ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/66386 2025-06-15T14:06:28+00:00 Glaucous Gull Predation on Dovekies: Three New Hunting Methods Jakubas, Dariusz Wojczulanis-Jakubas, Katarzyna 2010-12-03 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66386 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66386/50299 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66386 ARCTIC; Vol. 63 No. 4 (2010): December: 381–504; 468-470 1923-1245 0004-0843 glaucous gull foraging innovation hunting method dovekie goéland bourgmestre innovation de chasse méthode de chasse mergule nain info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 2010 ftunivcalgaryojs 2025-05-27T03:29:43Z We describe three previously unreported methods that hunting glaucous gulls (Larus hyperboreus) use to capture nesting and fledgling dovekies (Alle alle). During the nesting period, the pale-gray and white gulls camouflaged themselves by perching with head lowered on remnant snow patches in the dovekie colony, trying to ambush flying adults. We observed two other glaucous gull hunting methods on the open fjord water after the dovekie fledglings had left the colony. Gulls approached young dovekies in a fast, low-level glide, presumably to surprise the prey, and attempted to snatch them from the water. Gulls also swam rapidly towards young dovekies, zigzagging among small ice floes, presumably to confuse the birds and catch them before they could dive. The methods described, representing technical foraging innovations, supplement the evidence that gulls are a bird family that displays a diverse foraging innovation repertoire. Nous décrivons trois méthodes jamais signalées auparavant auxquelles recourent les goélands bourgmestres (Larus hyperboreus) pour capturer les mergules nains (Alle alle) aux stades de la nidification et de l’envol. Pendant la période de nidification, les goélands gris clair et blancs se camouflagent en se rabaissant la tête dans les restes de bancs de neige au sein des colonies de mergules nains afin d’essayer de piéger les adultes capables de voler. Nous avons observé deux autres méthodes de chasse de la part des goélands bourgmestres sur les eaux libres du fjord une fois que les mergules nains prêts à l’envol ont quitté la colonie. Les goélands s’approchaient des jeunes mergules nains en glissant rapidement et à faible altitude, vraisemblablement pour surprendre leurs proies, et essayaient de les arracher de l’eau. Les goélands se mettaient aussi à nager rapidement vers les jeunes mergules nains, en zigzaguant entre les bancs de glace flottante, probablement pour mélanger les oiseaux et pour les attraper avant qu’ils n’aient le temps de plonger. Les méthodes ainsi décrites, qui ... Article in Journal/Newspaper Alle alle Arctic Dovekie Glaucous Gull Goéland bourgmestre Larus hyperboreus mergule nain Unknown Nain ENVELOPE(-61.695,-61.695,56.542,56.542) ARCTIC 63 4
spellingShingle glaucous gull
foraging innovation
hunting method
dovekie
goéland bourgmestre
innovation de chasse
méthode de chasse
mergule nain
Jakubas, Dariusz
Wojczulanis-Jakubas, Katarzyna
Glaucous Gull Predation on Dovekies: Three New Hunting Methods
title Glaucous Gull Predation on Dovekies: Three New Hunting Methods
title_full Glaucous Gull Predation on Dovekies: Three New Hunting Methods
title_fullStr Glaucous Gull Predation on Dovekies: Three New Hunting Methods
title_full_unstemmed Glaucous Gull Predation on Dovekies: Three New Hunting Methods
title_short Glaucous Gull Predation on Dovekies: Three New Hunting Methods
title_sort glaucous gull predation on dovekies: three new hunting methods
topic glaucous gull
foraging innovation
hunting method
dovekie
goéland bourgmestre
innovation de chasse
méthode de chasse
mergule nain
topic_facet glaucous gull
foraging innovation
hunting method
dovekie
goéland bourgmestre
innovation de chasse
méthode de chasse
mergule nain
url https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66386