TY - JOUR
T1 - Duration of ‘peeks’ in ducks
T2 - how much time do Common Pochards Aythya ferina spend with an eye open while in a sleeping posture?
AU - Novčič, Ivana
AU - Krunić, Sara
AU - Stanković, Daliborka
AU - Hauber, Mark E.
N1 - Publisher Copyright:
© 2020 British Trust for Ornithology.
PY - 2020/4/2
Y1 - 2020/4/2
N2 - ‘Peeks’, or keeping an eye open, in wintering Common Pochard Aythya ferina, while in a sleeping posture, were relatively brief, typically (66% of observations) lasting less than one second. However, in 37% of individuals some peeks lasted 10 s or more. Contrary to our prediction of lower anti-predatory vigilance rates in larger groups, there was a positive relationship between peek duration and the numbers of neighbours in a flock.
AB - ‘Peeks’, or keeping an eye open, in wintering Common Pochard Aythya ferina, while in a sleeping posture, were relatively brief, typically (66% of observations) lasting less than one second. However, in 37% of individuals some peeks lasted 10 s or more. Contrary to our prediction of lower anti-predatory vigilance rates in larger groups, there was a positive relationship between peek duration and the numbers of neighbours in a flock.
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U2 - 10.1080/00063657.2020.1808590
DO - 10.1080/00063657.2020.1808590
M3 - Article
AN - SCOPUS:85090126023
SN - 0006-3657
VL - 67
SP - 256
EP - 260
JO - Bird Study
JF - Bird Study
IS - 2
ER -