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The decline of aerial insectivores could be related to large-scale insecticide use since the mid 1900s

The current population size for Common Nighthawks Chordeiles minor in Canada is estimated at 400,000 breeding adults. In Canada, data from ...

Story - Henk Tennekes - 05/11/2011 - 07:38 - 0 comments - 1 attachment

Massive Common Nighthawk Decline in Canada

... in Canada (COSEWIC) recommended that the Common Nighthawk Chordeiles minor be included on Schedule 1 of the Species at Risk Act. Areas surveyed ...

Story - Henk Tennekes - 09/02/2012 - 06:28 - 0 comments - 0 attachments

There's an alarming decline in chimney swifts in North America

... American insectivore bird species, such as nighthawks Chordeiles minor and whip-poor-wills Caprimulgus vociferus, are also in dramatic decline, ...

Story - Henk Tennekes - 07/02/2012 - 11:10 - 0 comments - 0 attachments

Songbirds on their way to extinction?

... of some species, including the common nighthawk Chordeiles minor, whippoorwill Caprimulgus vociferus, chimney swift Chaetura pelagica and ...

Story - Henk Tennekes - 22/11/2011 - 06:25 - 0 comments - 0 attachments

Alarming Insect-eating Bird Declines in Canada

... vociferus (A North American Nightjar), nighthawks Chordeiles minor, swallows, martins, and flycatchers have been severely diminishing over ...

Story - Henk Tennekes - 22/11/2011 - 06:16 - 0 comments - 0 attachments

Most of the avian insectivores are declining in northeastern North America

... lists of species at risk. Flagged are the common nighthawk Chordeiles minor and olive flycatcher Contopus cooperi (threatened nationally, of special ...

Story - Henk Tennekes - 16/10/2011 - 03:21 - 0 comments - 0 attachments

The proverbial clock may well be ticking down on many common species of aerial insectivores in Canada

... the case of Bank Swallow Riparia riparia, Common Nighthawk Chordeiles minor, Chimney Swift Chaetura pelagica, and Barn Swallow Hirundo rustica, and ...

Story - Henk Tennekes - 21/10/2011 - 14:45 - 0 comments - 1 attachment

Top 20 Common US Birds in Decline

... marine invertebrates. URBAN BIRDS: - Common Nighthawk Chordeiles minor:Though able to breed on city rooftops throughout North America, this ...

Story - Henk Tennekes - 27/10/2011 - 09:47 - 0 comments - 2 attachments