found this just now
COSEWIC News: Alarming Declines in Aerial Insectivores;
Peregrines Recover
30 April 2007 – The Committee on the Status of Endangered Wildlife in Canada (COSEWIC) has recommended several species for inclusion on Schedule 1 of the Species at Risk Act. In April, COSEWIC expressed alarm that aerial-feeding, insect-eating birds are disappearing: both Common Nighthawk and Chimney Swift were assessed as Threatened. Disturbingly, the cause of declines in these two species and other aerial insectivores (e.g. some swallows) is unclear, but is thought likely to involve impacts on insect populations through pesticide use and habitat loss. Red-headed Woodpecker was also assessed as Threatened, having experienced significant long-term declines associated with habitat loss and the removal of dead trees in which it nests. Sharp declines in the migratory Red Knot are also cause for concern; in particular, the subspecies rufa, which breeds only in Arctic Canada, was assessed as Endangered, and the subspecies roselaari, which migrates through BC and breeds in Alaska, was assessed as Threatened. Depletion of horseshoe crab eggs, a critical food source used during northward migration, has been cited as a key contributory factor in these declines. Black-footed Albatross, which feeds in significant numbers off the BC coast and is subject to various threats including by-catch from long-line fisheries, was assessed as Special Concern. There was some good news in the down-listing of the anatum subspecies of Peregrine Falcon to Special Concern, following widespread population recoveries following the ban in Canada of organochlorine pesticides (e.g. DDT).
Volunteer-based programs continue to play a major role in assessing the status of birds in Canada. The assessments for Chimney Swift and Common Nighthawk were largely based on results from the Breeding Bird Survey and the second Ontario Breeding Bird Atlas. Likewise, the assessment that resulted in a Threatened status for Red-headed Woodpecker was based upon results from the Ontario Breeding Bird Atlas and the migration monitoring program at Long Point Bird Observatory. Prothonotary Warbler was reconfirmed as being Endangered, based upon a status report authored by Jon McCracken (BSC’s Ontario Program Manager).