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Article
L. R. Griffin, AuteurThe increase in Rook Corvus frugilegus L. nest numbers at 18 colonies in County Durham, UK was monitored during the spring period of colony build-up. Nests were mapped to avoid miscounts and to track the stages of nest completion. Colonies were [...]
Article
C. J. Pennycuick, Auteur ; L. R. Griffin, Auteur ; Kendrew Colhoun, Auteur ; Richard Angwin, AuteurGPS transmitters were used with the Argos satellite system to track two Light-bellied Brent Geese (Branta bernicla hrota) from Iceland to Arctic Canada, three Greenland White-fronted Geese (Anser albifrons flavirostris) from Scotland to west Gre[...]
