Red Crossbills Rapidly Increase Their Capacity to Produce Heat in the Cold
In a captive experiment, two Red Crossbill ecotypes increased their heat-producing capacity within days of cold exposure. The…
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News about Red Crossbill
Research, conservation and important developments connected to this species.
Red Crossbills Preferred Small Black Pine Cones, but Seed Predation Was Lower Where More Seeds Were Empty
Across nine sites on the Iberian Peninsula, red crossbills preferred black pines with many small, thin-scaled cones. Among…
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