BIRDS OF NORTH AND MIDDLE AMERICA. 221 



Ammodwmus vaudacata--< Jakdixe, ed. AVilson's Am. Oni., ii, 1832,70, pi. 35, 

 fig. 3. — Baied, Rep. Pacific R. R. Siirv., ix, 1858, 453; Cat. N. Am. Birds, 

 1859, no. 341.— ScLATER, Cat. Am. Birds, 1862, 116 (Pemisylvania). — Coues, 

 Proc. Ac. Nat. Sci. Phila., 1871, 22 (Fort Macon, N. C, habits, etc.); Check 

 List, 1873, no. 166, part. — Baird, Brewer, and Ridgway, Hist. N. Am. 

 Birds, i, 1874, 557, part, ijI. 25, fig. 7. — Merriam, Review Birds Conn., 1877, 

 38 (summer resid.). — Brewster, Bull. Nutt. Orn. Club, iii, 1878, 119 (descr. 

 young). — Maynard, Birds Floridaand E. N. Am., 1881, 122, part. — Ridgway, 

 Nom. N. Am. Birds, 1881, no. 201, part. — Sharpe, Cat. Birds Brit. Mus., 

 xii, 1888, 685, part (Oyster Bay, Long Island). 



A.[mmodromus'] caiuktcnt us Gray, Gen. Birds, ii, 1849, 374. 



lAmmodromiis] caudacutus Bonaparte, Consp. Av., i, 1850, 482. — Coces, Key 

 N. Am. Birds, 1872, 138, part. 



Ammodramus raudacidus Boxaparte, Geog. and Comp. List, 1838, 32. — Audubon, 

 Synop., 1839, 111.— Coues, Check List, 2d ed., 1882, no. 166.— American 

 Ornithologists' Union, Check List, 1886, no. 549. — Chapman, Auk, vi, 1889, 

 303 (Piermont, lower Hudson R., New York, breeding). — Scott, Auk, vi, 

 1889, 322 (Tarpon Springs and Anclote R., Florida, winter). — Stone, Auk, 

 X, 1893, 85 (coast New Jersey and shores of Delaware Bay, breeding; Atlantic 

 City in winter). — Dwight, Auk, xiii, 1896, 273, 275 (crit.). — Xehrling, Our 

 Native Birds, etc., ii, 1896, 91. 



[Ammodramus'] caudacutus Gray, Hand-list, ii, 1870, 95, no. 7415. 



A.[)nmodritrnus'] caudncidus Coues, Key N. Am. Birds, 2d ed., 1884, 368. — Ridg- 

 AVAY, Man. N. Am. Birds, 1887, 413. 



Fringilla littoralis Nuttall, Man. Orn. U. S. and Canada, i, 1832, 504 (New York 

 to Georgia; coll. Ac. Nat. Sci. Phila., no. 6442) ; 2d ed., i, 1840, 590. 



Ammodramiis caudacutus nelsoni (not Ammodromus caudacutus, var. nelsoni 

 Allen) Nelson ( — ), Cat. Vertebrates New Jersey, — , 541 (see Stone, Auk, 

 xi, 1893, 85). 



AMMODRAMUS CAUDACUTUS NELSONI Allen. 

 NELSON'S SPARROW. 



Similar to ^. c. caudacHtii!<^ ])ut decidedly smaller, the bill conspicu- 

 ously so; coloration much brighter, the whitish, pale gra3'ish or pale 

 bufty streaks of back and scapulars more sharply contrasted with the 

 rich brown or olive ground-color; the chest, sides, and flanks deeper 

 buff, more abruptly contrasted with the white abdominal area, the 

 chest much less distinctl}^ (never sharply?) streaked with grayish or 

 dusky, the streaks never ( 'i ) approaching black. 



Adult male.—luQwgih. (skins), 114.30-124.46 (118.36); wing, 53.3-4- 

 57.15 (55.37); tail, 45.72-52.58 (47.50); exposed culmen, 10.16-10.67 

 (10.41); depth of bill at base, 5.33-5.59 (5.46); tarsus, 18.29-20.83 

 (20.07); middle toe, 14.73-16.26 (15.49).' 



Adidt female.— luQxigth (skms), 111.76-121.92 (115.57); wing, 52.07- 

 55.88(54.10); tail, 43.18-48.26 (45.97); exposed culmen, 10.16-10.67 

 (10.41); depth of bill at base, 5.33-5.59 (5.46); tarsus, 20.07-21.34 

 (20.32); middle toe, 15.24-16.51 (15.49).' 



' Ten specimens. 



