Birds must choose between mating, migrating, study finds
Sex or nice weather. That's the agonizing choice some birds face, according to a new University of Guelph study.
Plants & Animals
Apr 6, 2011
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Page 8 - News tagged with breeding season
Status symbols of house sparrows: High testosterone darkens their bill
(PhysOrg.com) -- The size of the black breast bib - the badge - and bill colour of male House Sparrows change over the course of the year. Such ornaments usually signal quality and dominance of a male to his conspecifics ...
Plants & Animals
Jun 4, 2010
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Natural antioxidants give top barn swallows a leg on competitors
A new University of Colorado at Boulder study indicates North American barn swallows outperform their peers in reproduction -- the "currency" of evolutionary change -- by maintaining a positive balance of antioxidants commonly ...
Plants & Animals
Feb 24, 2010
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They come from above: Here's why magpies, magpie-larks and lapwings swoop in spring
If you live in Australia or New Zealand, the coming of spring is a mixed blessing. The days get warmer. Flowers bloom. Birds nest.
Plants & Animals
Aug 29, 2024
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In Cuba, a haven for the world's tiniest bird
The wings of the world's tiniest birds are a near-invisible blur as they whizz around tourists visiting a private Cuban garden that has become a haven for the declining species.
Plants & Animals
Jul 12, 2024
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Scotland's capercaillie population offered extinction lifeline
Researchers might have solved the riddle of how to save one of Scotland's most iconic protected species from eating another.
Ecology
Jun 20, 2024
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Swifts need more nest boxes, but that alone won't be enough. Here's why
Swifts need two things. Safe, dry, nest holes high up on walls and lots of flying insects to eat—but both are in decreasing supply.
Plants & Animals
Apr 11, 2024
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Unveiling the reproductive secrets of red-swamp crayfish
Procambarus clarkii is a crustacean species native to American freshwater bodies. Brought to Japan in the 1920s as a feed for frogs, this crustacean has slowly taken over the Japanese freshwaters by predation and propagation. ...
Plants & Animals
Jan 10, 2024
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A Galápagos Island warbler population does not recognize call signaling mainland threat
Researchers are realizing that animal communication is more complicated than previously thought, and that the information animals share in their vocalizations can be complex. For example, some animals produce calls that warn ...
Plants & Animals
Nov 30, 2023
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Stress wrecks male big brown bat fertility during breeding season
Even on a good day the environment can be wildly unpredictable, from unexpected gusts of wind to food scarcity, and as humans continue to edge out the natural world, the stress on wild populations is increasing.
Plants & Animals
Oct 12, 2023
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