00000nam 2200000za 4500 9.850143 CaOODSP 20241203113641 cr ||||||||||| 180116s1987 oncbd|||o f000 0 eng d CaOODSP eng n-cn--- CW69-9/170E-PDF Collins, B. T., 1949- Analysis of trends from woodcock singing ground surveys 1969-85 [electronic resource] / by B.T. Collins. [Ottawa] : Canadian Wildlife Service, 1987. 5 p. : map, charts Progress notes ; no. 170 "September 1987." Digitized edition from print [produced by Environment and Climate Change Canada]. Issued also in French under title: Analyse des tendances indiquées par les recensements des bécasses à leurs places de chant de 1969 à 1985. Includes bibliographical references. "The woodcock singing ground survey is conducted by the U.S. Fish and Wildlife Service in cooperation with the Canadian Wildlife Service. The survey takes place during the spring courtship displays of American Woodcock (Scolopax minor)"--Introd. gccst Birds gccst Population Canada. Environment Canada. Canadian Wildlife Service. Analyse des tendances indiquées par les recensements des bécasses à leurs places de chant de 1969 à 1985 (CaOODSP)9.860823 Progress notes (Canadian Wildlife Service) no. 170 (CaOODSP)9.504439 PDF 290 KB https://publications.gc.ca/collections/collection_2018/eccc/CW69-9-170-eng.pdf