Aerial surveys of Nearctic shorebirds wintering in Mexico
Subtitle: some preliminary results
By: R.I.G. Morrison, R.K. Ross, and S. Torres M.
Series: Progress notes / Canadian Wildlife Service -- no. 201; Progress notes (Canadian Wildlife Service) -- no. 201
Publisher: Environment Canada, Canadian Wildlife Service
Published: 1992
Place of publication: Ottawa
Language: eng
Number of pages: 11
Subjects: Shore birds
Notes: Caption title.

"July 1992."

Catalogue no. CW69-9/201E.

Includes bibliographical references (p. 6).