IBIDIDJ3— THE IBISES. 110* 



Mexico and Central America and over the greater part of South 

 America. A third species, P. ridgwayi (Allen *) inhabits the 

 highlands of Peru. 



The two North American species are almost exactly alike in 

 plumage, and probably cannot be distinguished with certainty 

 in the immature stage. When fully adult, however, they may 

 readily be recognized by the followiug characters: 



a 1 . Feathers around base of bill blackish; lores greenish in life, and bill and legs green- 

 ish, or at least not red P. autumnalis. 



a 2 . Feathers around base of bill white; lores lake-red in life; bill more or less reddish, 

 and legs lake-red P. guarauna 2 . 



P. guarauna very likely occurs occasionally in Illinois, having 

 been taken in Nebraska, Kansas, and other States immediately 

 west of the Missouri River; but so far as I know it has not been 

 detected within our limits. 



Plegadis autumnalis (Hasselq.) 



GLOSSY IBIS. 



Popular synomyms. Bay Ibis; Green Ibis (young); Black Curlew. 



Tringa autumnalis Hasselq. Reise nach Palast. Deutsche Ausg. 1762, 306. 



Plegadis autumnalis Stejn. Stand. Nat. Hist, iv, 1885, 160.— A. O. U. Check List, 1886, 

 No. 186.— Ridgw. Man. N. Am. B. 1887. 124. 

 Tantalus f ale melius Linn. S. N. ed. 12, i, 1766, 241. 



Ibis falcincellus Vjeill. N. D. xiv, 1817, 23.— Bonap. Obs. Wils. 1825, No. 19:1.— Nutt. 

 Man. ii, 183-1. 88.— Aud. Orn. Biog. iv, 1838, 608, pi. 387; Synop. 1839,257; B. Am. vi, 

 1843,50, pi. 358 (adult). 

 Plegadis falcinellus "Kaup." FRiTSCH.Vog. Eur. 1869, Taf. 43. fig. 3, p.378.— Ridgw. Nom. 

 N. Am. B. 1881, No. 603.— Coues, 2d Chock List, 1882, No. 649.— B. B. & R. Water B. 

 N. Am. i, 1884. 94. 

 Tantalus castaneus Mull. 8. N. Suppl. 1766, 112 (adult). 

 Tantalus viridis Gmel. 8. N. i, 1788, 648 (young). 

 Tantalus igneus Gmel. S. N. i, 1788,649 (adult). 



Falcinellus igneus Gray, Gen. B. ed. 2, 1841, 87.— Elliot, P. Z. 8. 1877,503. 

 Tantalus mexicauus (nee Gmel.) Ord., Journ. Acad. Nat. 8ci. Phila. i, 1817. 52. 

 Ibis ordii Bonap. Comp. List, 1838, 49.— Cass, in Baird's B. N. Am. 1858, 635 (part).— Baird, 

 Cat. N. Am. 1859. No. 500. 

 Ibis falcinellus, var. ordii Coues. Key. 1872. 263; Check List, 1873. No. 445; B. N. W. 

 1874, 517. 



us ridgwayi Allen, Bull. Mus. Comp. Zool. iii, July, 1876. S55 (vicinity of 

 Lake Titk-aca, Peru).— Plegadis ridgwayi B. B. & R. Water B. N. Am. i. 1884, 94, 



'Soolopax guarauna Linn. 8. N. od. 12, i. 1766, 212.— Plegadis guarauna Kidow. Proo. 

 U. B. Nat. Mus. i, Oct. 2. 1678, 163. 



