Gourmand New Caledonian crows munch rare escargots by dropping

Numerous broken shells of a rare endemic snail Placostylus fibratus, a species rated as vulnerable, were scattered around rocky beds of dry creeks in rainforest of New Caledonian. We set a video camera near one site to identify the predator. We recorded a New Caledonian crow Corvus moneduloides drop...

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Bibliographic Details
Published inJournal of ethology Vol. 31; no. 3; pp. 341 - 344
Main Authors Tanaka, Keita D, Okahisa, Yuji, Sato, Nozomu J, Theuerkauf, Jörn, Ueda, Keisuke
Format Journal Article
LanguageEnglish
Published Tokyo Springer-Verlag 01.09.2013
Springer Japan
Springer
Subjects
Animal Ecology
Aves
Behavioral Sciences
Biological and medical sciences
Biomedical and Life Sciences
Corvus
Corvus moneduloides
crows
Evolutionary Biology
Fundamental and applied biological sciences. Psychology
indigenous species
Invertebrates
Life Sciences
Mollusca
rain forests
Short Communication
snails
streams
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
Zoology
Foraging economics
Prey dropping
Land snail
New Caledonian crow
Prey
Vertebrata
Gastropoda
Aves
Invertebrata
Mollusca
Foraging behavior
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Summary:Numerous broken shells of a rare endemic snail Placostylus fibratus, a species rated as vulnerable, were scattered around rocky beds of dry creeks in rainforest of New Caledonian. We set a video camera near one site to identify the predator. We recorded a New Caledonian crow Corvus moneduloides dropping and consuming the snail. This is the first direct evidence of the crow dropping of this native species. The assumed weight of snails relative to the crow is exceptionally heavy among prey dropped by birds.
Bibliography:http://dx.doi.org/10.1007/s10164-013-0384-y
ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0289-0771
1439-5444
DOI:10.1007/s10164-013-0384-y