00000cas 2200000zi 4500 9.505048 CaOODSP 20240527135424 cr ||||||||||| 150406c1998||||xxc|| p o||||f| |0eng|d CaOODSP eng n-cn--- CW71-2E-PDF Canadian Wildlife Service. author, issuing body. Bird trends : a report on results of national ornithological surveys in Canada / edition & production: Judith Kennedy. Ottawa, Ontario : Environment Canada. Annual text txt rdacontent computer c rdamedia online resource cr rdacarrier [No. 1, 199?]-- "Bird trends aims to provide: feedback to volunteers of ornithological surveys; information on trends in Canadian bird populations; a menu of volunteer-based ornithological projects in Canada"--Back cover. Kennedy, Judith, 1961- editor. Tendances chez les oiseaux : (CaOODSP)9.501447 Bird trends : (CaOODSP)9.514213