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- New Hampshire's ‘State of the Birds' - “Empty Skies: The Decline of Aerial Insectivores”
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... phoebe), kingbird (Tyrannus tyrannus), eastern pewee (Contopus virens), and olive-sided (Contopus cooperi), as well as each of the five species of Empidonax flycatchers. These ...
Story - Henk Tennekes - 19/03/2012 - 17:19 - 0 Kommentare - 0 Anhänge
- The proverbial clock may well be ticking down on many common species of aerial insectivores in Canada
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... Swallow Petrochelidon pyrrhonota, Olive-sided Flycatcher Contopus cooperi, Eastern Wood-Pewee Contopus virens, Northern Rough-winged Swallow ...
Story - Henk Tennekes - 21/10/2011 - 14:45 - 0 Kommentare - 1 Anhang
- Most of the avian insectivores are declining in northeastern North America
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... the common nighthawk Chordeiles minor and olive flycatcher Contopus cooperi (threatened nationally, of special concern provincially), Acadian ...
Story - Henk Tennekes - 16/10/2011 - 03:21 - 0 Kommentare - 0 Anhänge
- Top 20 Common US Birds in Decline
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... grasshoppers, and seeds. 12 Olive-sided Flycatcher Contopus cooperi: -73.2%; 2003 population estimate: 1,200,000. They wait on a perch at ...
Story - Henk Tennekes - 27/10/2011 - 09:47 - 0 Kommentare - 2 Anhänge