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Definitions (416)
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wintering grounds
Where migrating birds go after summer breeding season ends. For example, Purple Martins migrate to the tropics of South America.
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recurved
Curved upward or backward (as in a deformed bill.)
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social inheritance
when behaviors are 'learned' or passed down in a culture.
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bluepers
Mistakes made by bluebird host, with good intentions but unexpected and disappointing (and sometimes embarrassing) results. Linda Violett may have used it first. See Downside.
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communal nesting
Several females place eggs in one nest, and all adults care for the young. See Cooperative Breeding.
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site fidelity
Returning to the same nest site in subsequent breeding seasons.
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egg cry
noise made by some species during egg laying. E.g., a female House Finch issues a loud, continuous egg cry during laying.
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eggnant
A fun term coined on the Bluebird Nut forum for a female bird that is expecting.
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exoskeleton
the harder outer body layer of an insect or arthropod. Grit helps birds pulverize this part.
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internal compass
how organisms figure out what direction to go in long-distance movements like migration - hypothesized.
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