JAN., 1909. BIRDS OF ILLINOIS AND WISCONSIN CORY. 55 



GROUP 4. Wing, 8. 50 to 10 inches long. See page 66. 



Section 1. Hind toe, with flap or lobe; belly, white, sometimes tinged 



on lower part with dusky or gray; head, marked with more or less white, 



or brownish white. See page 66. 

 Section 2. Belly, white, sometimes tinged on lower part with gray or 



dusky; no white or grayish white on head. See page 66. 

 Section 3. Belly, not white; head, marked with more or less white, or 



grayish white. See page 67. 



Section 4. Belly, not white ; no white on head. See page 68. 

 GROUP 5. Wing, 10 to 14 inches long. See page 68. 



Section 1. Head, with more or less white, or grayish white; belly, black. 



See page 68. 



Section 2. No white on head; belly, black. See page 69. 

 Section 3. Head, with more or less white, or grayish white ; belly, mottled 



brown, or grayish brown, or slaty. See page 69. 

 Section 4. No white on head; belly, mottled brown, or grayish brown. 



See page 70. 



Subfamily ANSERINE. Geese. 



Lores, feathered; tarsus, reticulate (scales rounded). 

 GROUP 1. Wing, 12 to 14 inches long. See page 71. 

 GROUP 2. Wing, 14 to 20 inches long. See page 71. 



Section 1. Head and neck, black or blackish, marked with more or less 



white; bill and feet, black. See page 71. 



Section 2. Head, white, sometimes tinged with brownish orange; bill 

 and feet, pink or flesh color in life, yellowish or pale brownish in dried 

 skin. See page 72. 



Section 3. Head, brownish or grayish, sometimes marked with white; 

 bill, pinkish; feet, yellow or pink. See page 72. 



Subfamily CYGNIN^. Swans. 



Bare skin between the bill and eye; tarsus, reticulate (scales rounded); 

 neck, very long; wing, over 19 inches long. See page 73. 



