Phillips, Problems in Migration. 



27 



Vol. xxxiin 



1916 J 



I plotted two separate eurves in this way from observations made 

 both at Wenham, Mass., and at Pembroke, Mass and boA curves 

 were exactly alike, showing the same nses and falls wh.eh th>s 

 combined curve shows, so that I teel sure that we are dealmg w.th 

 snmethins significant. „ , . 4. 



Tt is hardfy necessary to state that the apex of th.s curve, a 

 six and seven, represents the average size of a family of Canada 



Geese as demonstrated by wild nests and -P^l^^^J" *t 

 our flock counts are exactly what we would expect from smgle 



'Tn conclusion I may say that (I) The P-."«- beha"°"»; 

 in. geese when shot into over live decoys is not explamable on he 

 ba'isortright alone, but suggests the temporary breakmg of a 

 sp a^ tor,; of interdependence, resulting m a curious lack o 

 Xtas n the individuals left behind. Is this due to parents 

 alertness m ^^^^^^ ^^^^^^^^ ,,„o,,ed, 



r:bXa:r\n)Lese^igrateinfan.lyparti.andg^^^^^^^ 



of families. The usual size of a famdy .s six or seven, often it 



five, and occasionally eight. 



