Beaks show why 'sister' species don't live together

(Phys.org)—A study of closely-related bird species has found that they do not coexist in the same region because they remain too ecologically similar and will out-compete each other, not because of geographical barriers ...

Mini video cameras offer peek at hard-to-observe bird behavior

Fledging behavior—when and why baby birds leave the nest—is something scientists know very little about. Rarely is someone watching a nest at just the right moment to see fledging happen. To get around this, the researchers ...

How does agriculture affect vulnerable insect-eating birds?

Aerial insectivores—birds that hunt for insect prey on the wing—are declining across North America as agricultural intensification leads to diminishing insect abundance and diversity in many areas. A new study from The ...

Grassland sparrows constantly searching for a nicer home

Some birds regularly move to new territories between years, depending on factors including habitat quality and the presence of predators, but what about within a single breeding season? Grassland ecosystems are particularly ...

Cockatoos win, swallows lose when roos come to town

Kangaroo grazing has a huge impact on grasslands and bird populations, potentially leading to population explosions of some species while others decline, a new study from The Australian National University (ANU) has found.

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