Researchers investigate bird's 'carotenoid circle of life'

(PhysOrg.com) -- “What you see is what you get” often is the mantra in the highly competitive life of birds, as they use brilliant displays of color to woo females for mating. Now researchers are finding that carotenoids ...

Manakins, birds of tropical forests, cooperate for common goal

(PhysOrg.com) -- Leks, they're called, gatherings of males of certain animal species for competitive mating displays. But not every lek's members are competitors, scientists have learned. Some--birds called wire-tailed manakins, ...

Hunger may inhibit defensive behavior

Most animals don't spend nearly as much time and energy defending nesting or mating sites against intruders outside the breeding season. That's a given.

Fly away home? Ice age may have clipped bird migration

The onset of the last ice age may have forced some bird species to abandon their northerly migrations for thousands of years, says new research led by a University of Nebraska-Lincoln ornithologist.

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