Do swallows (Hirundo daurica) use the visual cue of hatchling down-feathers to discriminate parasite alien nestlings?
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DOI: 10.1111/1749-4877.12436
Abstract: Egg recognition is a variable but common anti-parasitism defense among different species of birds with brood parasites. In contrast, nestling recognition is rare. Very few studies have found nestling recognition in brood parasite hosts and… read more here.
Keywords: visual cue; red rumped; hatchling feathers; nestling recognition ... See more keywords