JAN., 1909. BIRDS OF ILLINOIS AND WISCONSIN CORY. 359 



Genus GUARA Reich. 



76. Guara alba (LINN.). 

 WHITE IBIS. 



Distr.: South Atlantic Gulf states and West Indies, Lower Cali- 

 fornia and southward to northern South America. 



Immature. White Ibis. Male. 



Adult: General plumage, white; the four outer primaries, black; 

 bare skin at base of bill, orange red in life. 



Immature: Head and neck, dull white, or brownish white, streaked 

 with grayish brown; wings and back, grayish brown; rump, white; 

 under parts, white. 



Length, about 25; wing, 10.50 to 11.50; tarsus, 3.50; bill, 5 to 7. 



Casual or rare in summer in the extreme southern portion of Illi- 

 nois. Mr. Ridgway states (Orn. of Illinois, 1895, p. 109) that while 

 in company with Mr. William Brewster, he observed a flock of seven 

 or eight examples flying along the Wabash River near Mt. Carmel 

 in May, 1878. It has not been observed in Wisconsin. 



