Results 91 to 100 of about 5,297 (230)

First-Time Migration in Juvenile Common Cuckoos Documented by Satellite Tracking.

open access: yesPLoS ONE, 2016
Being an obligate parasite, juvenile common cuckoos Cuculus canorus are thought to reach their African wintering grounds from Palearctic breeding grounds without guidance from experienced conspecifics but this has not been documented.
Marta Lomas Vega   +10 more
doaj   +1 more source

A comparative study of the function of heterospecific vocal mimicry in European passerines [PDF]

open access: yes, 2007
Although heterospecific vocal imitation is well documented in passerines, the evolutionary correlates of this phenomenon are poorly known. Here, we studied interspecific variation in vocal mimicry in a comparative study of 241 European songbirds.
Anders Pape Møller   +72 more
core   +1 more source

Reflexiones en torno a la historia lexicográfica de las voces "cuclillo" y "curruca" [PDF]

open access: yes, 1992
Se analiza el tratamiento recibido por los pájaros españoles llamados cuclillo- cuquillo “cuco” y curruca en el antiguo y moderno diccionario latino-español. Trata de subrayar algunos apectos del origen y evolución de la tradición lexicográfica española.
Clavería Nadal, Gloria
core  

Threshold Responses of Bird Communities to Human Footprint: Testing the Intermediate Disturbance Hypothesis and Implications for Biodiversity Conservation

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
Human activities, quantified by the Human Footprint Index (HFP), drive biodiversity declines, with birds serving as sensitive indicators of ecosystem health. In northeastern Inner Mongolia, Threshold Indicator Taxa Analysis (TITAN) identified a community composition shift at HFP ≈ 14, with species‐specific thresholds ranging from 3.37 to 43.22 ...
Xi Yang   +5 more
wiley   +1 more source

Estudio ornitológico de los parques y alrededores de Pamplona [PDF]

open access: yes, 1986
Se ha estudiado la ornitofauna de 5 parques de Pamplona y 4 áreas de su periferia. Respecto al estudio cualitativo, se ha realizado una clasificación fenológica de las aves observadas, habiéndose catalogado 110 especies.
Escala, M.C. (Mª Carmen)   +2 more
core  

Coloración y tamaño de los huevos de urraca (pica pica) en relación con la parasitación con el críalo (Clamator glandarius) [PDF]

open access: yes, 2016
Premio extraordinario de Trabajo Fin de Máster curso 2013-2014. Etología.El estudio del parasitismo de incubación, en el marco de la hipótesis de la "carrera de armamentos", ha mostrado evidencias de procesos coevolutivos entre hospedador y parásito.
Hita Sánchez, Alejandro
core  

封底说明:

open access: yes野生动物学报, 1991
大杜鹃(Cuculus canorus)俗称布谷鸟,体长约320mm。主要栖息在山地的森林内,常穿飞于林间,有时也息落于大树尖上,繁殖期叫声经久不息,卵大小约23×18mm,灰白色,具褐色斑点。食物主要是松毛虫、午毒蛾、枯叶蛾等毛虫,是食虫益鸟。
doaj  

THE PHORESY OF THE LOUSE MALLOPHAGA ON THE POPULATION OF THE LOUSE-FLY HIPPOBOSCIDAE

open access: yesРоссийский паразитологический журнал, 2016
Objective of research: To study the role of phoresy of the louse Mallophaga on the population of the louse-fly Hippoboscidae.Material and methods: In 1997–2015 more than 10000 birds were caught; from them about 2000 louse-flies Hippoboscidae were ...
A. V. Matyuhin
doaj  

Asymmetry of eye color in the common cuckoo

open access: yesScientific Reports, 2017
Bilateral symmetry is assumed to contribute to the evolution of eye color, with the left and right eye being the same color in most vertebrates; yet, few studies tested this assumption. Here, we compared the amount of iris flecking (black spots presented
Ha-Na Yoo, Jin-Won Lee, Jeong-Chil Yoo
doaj   +1 more source

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