450 



ZOOLOGY— BIRDS. 



and lined nicely with weeds. They are of a dull olive-brown color blotched 

 all over with black. 



Dimensions: No. 1, 2.00 by 1.43 ; No. 2, 1.85 by 1.07 ; No. 3, 1.91 by 

 1.43; No. 4, 1.91 by 1.42. 



No. 



Sex. 



441 



s 



3S9 



$ ad. 



390 



i ad. 



391 



9 ad. 



Locality. 



Provo, Utah. 



Alkali Lakes, Colo. 



do 



do 



Date. 



Collector. 



Nov. 26, 1S72 



June 21, 1S73 



do 



do 



Dr. IT. C. Yarrow and 

 II. W. Henshaw. 



II. W. Henshaw 



do 



do 



Wing. Tail. 



Bill. 



Tarsus. 



8.80 



3-73 



3.60 



3-5° 



8.90 



3-97 



3-76 



3-40 



9.00 



3-70 



3-36 



3- 3= 



HIMANTOPUS NIGRICOLLIS, Vieill. 



Black-Eieckcd Stilt. 



Himantopw nigricollis, Vieill., Nouv. Diet. d'llist. Nat., x, 1817, 42. — Newr., P. 

 R. R. Rep., vi, 1857, 99 (California to the Columbia River). — Bd., Birds 

 N. A., 1858, 704.— Henry, Proc. Acad. Nat. Sci. Pliila., 1859, 108 (New 

 Mexico). — Cotjes, Proc. Acad. Nat. Sci. Pliila., 1866, 91 (Arizona).— Allen, 

 Bull. Mus. Comp. Zool., iii, 1872, 172 (Great Salt Lake)-— Meeriam, U. S. 

 Geol. Surv. Terr., 1872, 7(12 (Great Salt Lake)— Coues, Key N. A. Birds, 

 1872, 247, f. 160.— Yarrow & Hensiiaw, Rep. Ora. Specs., 1872, Wheeler's 

 Exped., 1874, 29. — Yarrow, Rep. Ora. Specs., 1871, Wheeler's Exped., 

 1874, 30.— Henshaw, Rep. Urn. Specs., 1873, Wheeler's Exped., 1874, 69, 

 94.— Coues, Birds Northwest, 1874, 462. 



Found in the same localities, at the same time, as the preceding bird, 

 the two often breeding in the same neighborhood, while in general there is 

 quite a close correspondence in their habits. At the lakes just referred to, 

 the Stilts were present in nearly ecptal numbers with the Avocets ; the two 

 minerling and feeding within a few feet of each other on the best of terms. 

 The Stilt is a true wader ; and never, so far as I could learn, imitates its 

 associate in its natatorial excursions from point to point. I found the young 

 of this bird, too, had just been hatched, and the parents manifested the most 

 extreme solicitude, flying about in a restless way, and accompanying my 

 progress step by step, as though fearful of losing sight of me for an instant. 

 Besides newly hatched young, so weak and helpless that they could scarcely 

 totter about on their misshapen legs, I found a single clutch of eggs, four in 



