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New Hampshire's ‘State of the Birds' - “Empty Skies: The Decline of Aerial Insectivores”

... flycatchers such as: Phoebe (Sayornis phoebe), kingbird (Tyrannus tyrannus), eastern pewee (Contopus virens), and olive-sided (Contopus ...

Story - Henk Tennekes - 19/03/2012 - 17:19 - 1 commentaire - 0 fichier attaché

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

... Swallow Stelgidopteryx serripennis, Eastern Kingbird Tyrannus tyrannus, and Purple Martin Progne subis. Declines have been so severe ...

Story - Henk Tennekes - 21/10/2011 - 14:45 - 1 commentaire - 1 fichier attaché