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Show 146 Falco jacquini GM. S. N. i, 1788, 251. Falco cristatus GM. I. c. 26Cf. Falco destructor DAUD. Tr. iif 1800,60.- TEMM. PI. Col. i, 1824, pi. 14. Harpyia destructor Cav. Reg. An. i. 1817,317.- HALLO WELL, Pr. Ac. Nat. Sci. Phiiad. 1846, 84- 88 ( anatomy and osteology).- D'ORB. Voy. Am. Me* rid. Ois. 1847, * 1.- BURM. Th. Bras, ii, 1856,59. Nothrophrontes destructor GLOO. Handb. Naturg. 1842,219. Morphnus destructor LICHT. Nomencl. 1* 54,2. Falco imperialis 8HAW, Gen. Zool. vii, 1809,52, pi. 15. Harpyia imperialis STBPH. Zool. xiii, 1826,17. Falco regalis SHAW, I. c. 56. Falco caracca SHAW, I c. 64. Falco calquin MOLINA, St. Chile, 1810,220. Harpyia maxima VIBILL. Enc. M6th. iii, 1823.1249. Harpyia ferox LESS. Tr. 1831,50. VAigle hupe'du Brtsil BRISS. Orn. i, 1760,446. Caracca Falcon LATH. Gen. Synop. i, 1781,81. Crested EayU LATHAM, Synop. i, pt. i, 1781,6,7 ( in part). Crested Falcon DILLON, Trav. Spain, 1782,80, pi. 3. Grand Aigle de la Guiane MAUD. Enc. M6tb. iii, 1784, 1250. Crowned Vulture LATHAM, Syn. Supp. 1787,5. L'Vuira ouassou Soxx. ed. Button N. H. xxxviii, 1806,47, pi. 7, fig. 1. Hab.- The whole of tropical America, south to Bolivia and Paraguay and north to Middle Mexico; Mirador and Tehuantepec, Mexico ( NAT. Mus.); Costa Rica ( NAT. MUS.); British Guiana ( BR. Hvs. fide SHAEPE). Wing, 21.00- 24.50; tail, 16.00- 18.50; crimen, 1.80- 2.20; tarsus, 4.50- 5.00 ; middle toe, 2.85- 3.80; hind claw, 2.25- 3.00; outer claw, 1.10- 1.30. Adult:- Entire upper parts andjugulura plain brownish- black, the jugular patch abruptly terminated posteriorly, with a convex outline, and sharply defined against the white of the remaining lower parts. Tibia1 barred with black- elsewhere beneath usually immaculate. Head and neck uniform ashy, paler on the throat, darker on the crest. Tail crossed by about four bands of mottled ashy, nearly as wide as the black ones. Young:- Above light ash, marbled with blackish. Tail deep ash, marbled with black- this disposed into about five broken bands on the middle feathers, but confused on the others; secondaries and primaries mottled with dusky. Head, neck, and lower parts white, the long crest- feathers aud the breast tinged with pale ashy. A young male from the Isthmus of Tehuantepec ( No. 54,224, Sat. Mus., October 8,1868; P. Sumichrast) differs from the description of the young as above in the following particulars. Only the middle pair of tail- feathers are colored as described, they having five bands each of dark ashy and black, the bands of the two colors about equal in width, the former terminal. The other tail- feathers are wholly gray, less glaucous than the intermedin, very indistinctly mottled with darker, and without trace of transverse bands, except an approximation to a sub-terminal one in the presence of a blackish spot next to the shaft near the end of each feather. The bird is evidently in transition- plumage, so that the intermedin probably represent the adult dress, and the other rectrices the first plumage; traces of the coming adult livery are seen in the admixture of numerous black feathers among the lesser wing- coverts and scapulars, the longer crest- feathers, and across the jugulura, portions which are eutirely black in the adult. Some of the feathers of the lower parts are tinged with ochraceous, but whether this is natural or caused by the staiu of ochreons earth, is doubtful. According to Professor Snmichrast's notes on the original label, the iris is dark brown, cere aud bill black, and the feet yellowish- white. List of specimens examined.- National Mnsenm, 4; Phiiad. Acad., 2; mna. G. N. Lawrence, 1; Bostou Soc, 2 ; total number of Bpecimens examined, 9. |
