Results 111 to 120 of about 9,315 (206)

Avifauna de la región de Soata Departamento de Boyacá, Colombia

open access: yesCaldasia, 1955
Entre el 8 de diciembre de 1952 y el 26 de enero de 1953, el Padre Olivares, O. F. M., hizo una correría por la región de Soatá, Departamento de Boyacá, acompañado por el señor Jorge Hernández, auxiliar de Zoología de este Instituto, con el ánimo de ...
Borrero H. José Ignacio   +1 more
doaj  

我国珍稀保护动物 鸟类(三) 雁形目

open access: yes野生动物学报, 1986
六、雁形目本目主要特点是脚适于游泳;嘴通常平扁,先端具嘴甲;雄鸟具交接器。全球有146种,我国有46种。红胸黑雁 (Branta ruficollis) 属鸭科(Anatidae),英名为 Red-breastedGoose。体长约550毫米。本种主要特征是前颈至胸栗棕色,头顶、后颈均黑。此黑雁是典型的北极海洋鸟类,能耐严寒,喜栖于海湾。
谭耀匡
doaj  

The scope of English zoosemy : the case of domesticated animals [PDF]

open access: yes, 2005
Kiełtyka, Robert   +1 more
core  

CLIMATE CHANGE INFLUENCES ON THE RISK OF AVIAN INFLUENZA OUTBREAKS AND ASSOCIATED ECONOMIC LOSS [PDF]

open access: yes
This paper examines the effect that climate has on Avian Influenza outbreak probability. The statistical analysis shows across a broad region the probability of an outbreak declines by 0.22% when the temperature rises 1 Celsius degree and increases by 0 ...
Gan, Li   +3 more
core   +1 more source

Possible steps in the evolutionary development of bird navigation [PDF]

open access: yes
Hypotheses are presented to explain the evolutionary development of navigational ability in migratory birds. Areas of discussion to describe the possible techniques are: (1) sun compass, (2) bicoordinate navigation, (3) star compass, (4) wind cues, (5 ...
Bellrose, F. C.
core   +1 more source

The role of wild birds in the global highly pathogenic avian influenza H5 panzootic, 2020-2023. [PDF]

open access: yesNPJ Biodivers
Couty M   +7 more
europepmc   +1 more source

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