Results 51 to 60 of about 6,499 (205)

Assessing avian richness and diversity in different regions of oil palm plantation in Selangor, Malaysia [PDF]

open access: yes, 2015
Malaysia is characterized by a variety of habitats such as forests, clearings, thickets, and cropland that attract various species of birds. This study examined the bird community in terms of richness and diversity at oil palm plantations habitat.
Amir, Aainaa   +2 more
core   +1 more source

Haemoproteosis and avian malaria in Columbidae and Corvidae from Iran [PDF]

open access: gold, 2021
Leila Nourani   +4 more
openalex   +1 more source

Zur Siedlungsdichte und Standorttreue der Elster (Pica pica) in der Stadt Osnabrück : mit 3 Tabellen [PDF]

open access: yes, 2012
In den Jahren 1983 bis 1985 wurden im Stadtraum von Osnabrück (120 qkm) Untersuchungen zum Brutbestand und zur Standortstreue der Elster durchgeführt.
Kooiker, Gerhard
core  

Algunos aspectos ecológicos de fases de vida libre de Haemaphysalis juxtakochi Cooley, 1946 (Acari: Ixodidae) en Panamá [PDF]

open access: yes, 2014
Objective. To describe the seasonal variation and perform a comparative analysis on habitat preference of Haemaphysalis juxtakochi in Panama. Materials and methods.
Bermúdez, Sergio   +3 more
core  

Moult Seasons of the British Corvidae [PDF]

open access: yesBird Study, 1974
This description of the annual post-nuptial moult among British crows shows that one-year-old Magpies and Carrion Crows begin ahead of the adults, and that the timetable is different in these two species.
openaire   +1 more source

Deep ecomorphological and genetic divergence in Steller's Jays (Cyanocitta stelleri, Aves: Corvidae)

open access: green, 2022
Carla Cicero   +7 more
openalex   +1 more source

GEOMETRIC MODELLING OF EGG VARIABILITY IN CORVIDAE

open access: yesAmurian Zoological Journal, 2015
We analyzed the egg shape in bird family Corvidae using a polynomial model and a compound ovoid model. We constructed a geometric model that reflects the relationship between cloacal and infundibular arcs, and the length and the diameter of the egg. Specifically, we quantified the shape of the egg via seven indices: the traditional index of elongation ...
I.S. Mityay, A.V. Matsyura
openaire   +2 more sources

Aspects of genetic and morphological variation in selected new world land birds [PDF]

open access: yes, 2000
Thesis (M.S.) University of Alaska Fairbanks, 2000The objective of this thesis is to examine variation in certain New World land birds, focusing on morphological difference at the intraspecific level and genetic differences at the intra- and ...
Weicker, Jacqueline Joyce
core  

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