1 88 DAVENPORT ACADEMY OF vSCIENCE.S. 



— "have one specimen killed at Twin Lakes, Iowa, now in the 

 collection of the State Historical Department" (Johnson). Sioux 

 — "rare migrant" (Berry). Pottawattamie — Mills — "abundant 

 migrant" (Trostler). Winnebago — Hancock — "rare migrant" 

 (Anderson). Woodbury — "uncommon transient— Sioux City" 

 (Rich). 



62. (172c). Branta canadensis minima Ridgwa}'. Cackling 

 Goose. 



The Cackling Goose is the smallest representative of the Branta 

 canadensis group. It is characterized by small size, dark under 

 parts, white collar around lower neck usually very distinct; white 

 cheek-patches usually separated by a black throat stripe or black 

 mottling on throat. Ridgway gives the following as measure- 

 ments: lycngth 23-25; wing 13.60-14.50; culmen .95-1.15; tail 

 feathers usually 14 to 16. 



Eleven specimens in the Talbot collection, taken in Iowa, are 

 clearly referable to minima. Three were identified by Robert 

 Ridgway, No's. 5077, 6586, and 7994. 



5077. Whiting, Iowa, 1885; female; length 24.50; wing 13.37; 

 bill 1.30; weight 3 lbs.; tail i6-feathered; grayish below, anal 

 region white, sharply contrasted; black stripe continuous along 

 throat from bill to neck, separating the white cheek-patches, 

 lower portion of stripe mottled with white; whitish collar quite 

 distinct at base of black neck. The bird was about the size of a 

 Mallard Duck. 



6586. Whiting, Iowa, April 6, 1886; length 25.75; wing 14.63; 

 tail 5.25 (i6-feathered); weight 3^ lbs.; cheek-patches separa- 

 ted by continuous black line, slightly mottled posteriorly. 



7994. W^hiting, Iowa, April 7, 1885; length 25.80; wing 14.50; 

 tail 6.13 (14-feathered) ; weight 3%' lbs,; cheek-patches not sep- 

 arated in front. 



8091. Whiting, Iowa, April 7, 1S85; length 26.25; wing 14.13; 

 bill 1.38; weight 3^ lbs; tail i6-feathered; white cheek-patches 

 separated by black stripe; no white collar. 



51 16. Whiting, Iowa, April 7, 1885; length 26; wing 14.50; 

 tail 6.00 (15-feathered); weight 3^^ lbs.; white cheek-patches 

 separated by only slight trace of black mottling on median line of 

 throat anteriorly. 



