Our Audubon project to document the Vaux's Swift North American
communal migratory roost sites just finished its tenth and most
successful season. 187 different observers made 525 observations at
67 suspected sites from BC to the Mexican border, documenting
1,028,399 NA VASW evening entries.

Larry Schwitters
Issaquahouthboun
IL

Larry Sc
Llll012 - 1,028,399 NA VASW roostings. 187 different observers made
525 observations at 67 suspected sites..