Cogswell 1949 Branta canadensis -2 Feb.5 (cont)- row of small willows where they dropped down again , although the ducks much closer to us were undisturbed [cf. actions of anser albifrons this same date] Feb.6 - Tracy Lodge Refuge, S.W. Butte Co., Calif.- see journal- Mar.20- " " " " " " " - of all the "Canadas" seen here today (550+ total), those seen at close enough range all seemed to be B. C. minima on basis of short bill and the call notes given in flight, which were high nasal "bank", "bank", "bank", etc. - varying in pitch from bird to bird - but none doubled. one flock of 50+ feeding on sprouting grain fields S. of the refuge gave deeper calls, & I think they were B.C.leucoparies. one group of 3 which flew over headquarters seemed large enough & slow enough of wing beat & be B.C.canadensis. Mr. Lowan, refuge manager, says that the calling these are the last to leave in the spring.