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Showing 1 to 3 of 3 for “"Chimney Swifts"”.
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Flight Vocalizations and Displays of Adult Chimney Swifts (Chaetura Pelagica): Description and Function
… vocal behavior of many non-passerines, including swifts. While flying alone as well as during aerial displays with conspecifics, Chimney Swifts (Chaetura pelagica) often utter a twitter call consisting of a series of high-frequency chip notes. However, little is known about the possible …
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Facultative adjustment of pre-fledging mass recession by nestling Chimney Swifts (Chaetura pelagica)
… were to determine if mass recession by Chimney Swift <em>(Chaetura pelagica)</em> nestlings is intrinsically controlled or facultatively adjusted by nestlings, and if mass recession is driven by changes in parental behavior (i.e., reduced provisioning rates) or nestling behavior (i.e., …
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Aspects of municipalities associated with occupancy of Chimney Swifts and Common Nighthawks in Illinois
Aerial insectivorous birds like the Chimney Swift (Chaetura pelagica) and Common Nighthawk (Chordeiles minor) are experiencing population declines across North America. While causes of declines are unknown, habitat availability is likely a contributing factor. Both species breed in urban areas. …