. Recensione di uccelli americana nel museo dello Smithsonian Instution. [Microformati]. Gli uccelli; Oiseaux. 280 Recensione OP AMERICAN uccelli. r- [PAHT I. fi^; io (fi H. più pallida streak sulla gola. In tutti stagdfl piumaggio di piume di urissum sono 8uowy bianco a tlieir radici, compreso il uhafts. (N. 30,278.) lunghezza totale, 7,00; ala, 5,60; coda, 3.15; la differenza è- tween esterno ed interno di piuma, 78 ; differenza tra lat e primario 9, 2.88; lunghezza di bill dal fronte, .55, dalla narice, .34, lungo g(i{)e .88; wi(ith di gaj)e .68; Tarso, .55 ; centro di punta e olaw, .78; solo ad artiglio, .26; hind

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. Review of American birds in the Museum of the Smithsonian Instution. [microform]. Birds; Oiseaux. 280 REVIEW OP AMERICAN BIRDS. r- [PAHT I. fi^; i it (fi H. paler streak on throat. In all stagdfl of plumage the feathers of urissum are 8uowy white to tlieir roots, including the uhafts. (No. 30, 278.) Total length, 7.00; wing, 5.60; tail, 3.15; difference Is- tween outer and inner feather, .78 ; difference between lat and 9th primary, 2.88; length of bill from forehead, .55, from nostril, .34, along g(i{)e, .88; wi(ith of gaj)e, .68; tarsus, .55 ; middle toe and olaw, .78; claw alone, .26; hind toe and claw, .48 ; claw alone, .23. The pure white of the belly and crissura, in all stages, will readily distinguish females and young of this species from those of mhi%, in which the white is not pure, and the feathers of the crissum always clouded with gray in the centres. The adult male is of course readily distinguished by the snowy white belly, etc. In size the two birds are not materially differentâthe dominieenm rather the smaller. The tail feathers appear disproportionately narrower and more attenuatedâthe outer being .40 of an inch wide, iHstead of .48. The feet, too, are disproportionately smaller, the hind toe and claw especially, which measure .48, instead of .54. I cannot detect any difference between the Jamaica bird and a Porto Rican skin in Mr. Lawrence's collection, except that the latter has a patch of blackish on the outer web of the longest crissal feather. I am, however, by no means sure that the Cuban and Porto Rioaii birds, either or both, belong to the true dominicensis, of St. Domingo. They are, at any rate, very different from the species of continental Middle, or of South America, usually considered as identical. Smith- soniaa No. Collec- tor's No. Sex and Age. Locality. When Collected. Received from Collected by 30, 278 30, 279 30, 280 26, 815 24, 378 18 U 143 ad.cf SiianUbtowD, Jam. II II 11 Porto Rico. May. 1863. â¢July, 186.S. July, 186-2. July,

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1870
• booksubjectbirds
• bookyear1872