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Citation: Wm. Hochachka et al., Irruptive migration of common redpolls, CONDOR, 101(2), 1999, pp. 195-204

Authors: Wells, JV Rosenberg, KV Dunn, EH Tessaglia-Hymes, DL Dhondt, AA

Citation: Jv. Wells et al., Feeder counts as indicators of spatial and temporal variation in winter abundance of resident birds, J FIELD ORN, 69(4), 1998, pp. 577-586