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Nesting Mortality of Carolina Chickadees Breeding in Natural Cavities
Nest-holes are conventionally thought to enhance avian breeding success by the protection they offer against inclement weather and predation. Studies of birds nesting in natural cavities are rare,Expand
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Song development by Black-capped Chickadees (Parus atricapillus) and Carolina Chickadees (P. carolinensis)
AnSTRACT.--Do songs of songbirds, which learn to sing, provide reliable clues to genetic identity in zones of secondary contact? How do some songbird species maintain such highly stereotyped songsExpand
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PARUS ATRICAPILLUS) AND CAROLINA CHICKADEES (P. CAROLINENSIS)
fee-bee song than did two male Black-capped Chickadees. In another mixed group, a male Black-capped Chickadee produced a better imitation of tape-tutored Carolina Chickadee song elements than did theExpand
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