chicks

Fear of predators means sparrows struggle to raise chicks to adulthood

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Sparrows on a collection of Canadian islands change their behaviour when they fear predators are nearby, and an experiment shows this reduces their ability to raise their offspring to adulthood Life 7 February 2022 By Luke Taylor Song sparrow (Melospiza melodia) in British Columbia, Canada Jess Findlay/BIA/Minden/Naturepl.com The fear of predators alone is enough to … Read more

Zebra finch songs alter the behaviour of their chicks’ mitochondria

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In warm weather, zebra finches sing heat calls to their unborn offspring, and this programs the nestlings to produce less heat inside their cells Life 8 December 2021 By Carissa Wong A zebra finch in the wild HenrikNorway/Getty Images Zebra finches sing a special song to their eggs to warn them about hot weather, and … Read more