448 



ZOOLOGY— BIRDS. 



young were hatched. The time for laying eggs probably varies considerably, 

 as, during the month of July, the young were seen at various places in 

 New Mexico. 



No. 



Sex. 



3">5 



1 ad. 



306 



9 ad. 



3°7 



i ad. 



74 



<?)»"• 



75 



9jun. 



76 



Jun. 



77 



Jun. 



78 



Jun. 



80 



Jim. 



167 



Jun. 



Locality. 



Rio Grande, Colo . 



do 



do 



Pueblo, Colo 



do 



do 



do 



do 



do 



do., 



Date. 



1S74 



June 10, 1S73 



do 



do 



July 30. 



do 



do 



do 



do 



do 



do 



Collector. 



II. W. Ilenshaw. 



do 



do 



C. E. Aiken 



do 



do 



do 



do 



do 



do 



Wing. 



Tail. 



Bill. 



Tarsus. 



5-93 



2.95 



0. Si 



■•45 



5. So 



-■75 



0. S9 



1.48 



5-5° 



2.59 



0.S5 



1.38 



5.S2 



2-73 



0. So 



1.52 



5-97 



2.S5 



0.77 



'•55 



5-75 



2. 92 



0. S2 



i-5- 



5-95 



2.77 



0.75 



1.4S 



5-72 



2.S5 



0.82 



1.49 



5.68 



2.60 



0. 72 



1.4S 



5. So 



2.65 



0. 84 



1-54 



- Fam. RECURVIROSTRIDAE : Stilts and Avocets. 



RECURVIROSTRA AMERICANA, Gmel. 

 American Avocet. 



Recurvirostra americana, Gmel., Syst. Nat,, i, 17S8, 603. — Bd., Stans. Rep. Exp. Great 

 Salt Lake, 1852, 320.— Woodil, Sitgreave's Exp. Zufii & Col. Riv., 1854, 

 Kio (Indian Territory; New Mexico). — Bd., Ives' Col. Exped., 1857-58, pt. 

 iv, 0.— LI., Birds N. A., 1858, 703.— XANTUS, Proc. Acad. Nat. Sci. Pliila., 

 1850, 102 (Fort Tejon, Cal.).— Bd., U. S. & Mex. Bound. Surv., ii, pt. ii, 

 1850, Birds, 25.— Coop. & Suckl., P. R. R. Rep., xii, pt. ii, 1800, 234.— 

 Henry, Proc. Acad. Nat. Sci. Pliila., 1850, 108 (New Mexico).— Uayd., 

 Rep., 1802, 173 (Yellowstone).— Coues, Proc. Acad. Nat. Sci. Phila,, 1800, 

 07 (Arizona).— Stev., U. S. Geol. Surv. Terr., 1870, 400 (North Platte).— 

 Coues, Proc. Acad. Nat. Sci. Phila., 1871, 33.— Allen, Bui. Mus. Comp. 

 Zool., iii, 1872, 182 (Great Salt Lake).— Coues, Key N. A. Birds, 1872, 147, 

 f. 150.— Snow, Birds Kan., 1872, 13.— Aiken, Proc. Bost. Soc. Nat. Hist., 

 xv, 1872, 200 (Arkansas River).— Merriam, U. S. Geol. Surv. Terr., 1872, 

 7<U.— Allen, Proc. Bost, Soc. Nat, Hist,, June, 1S74, 30.— Yarrow & Hen- 

 siiaw, Rep. Orn. Specs., 1872, Wheeler's Exped., 1874, 20.— Hensiiaw, 

 Rep. Oru. Specs., 1873, Wheeler's Exped., 1874, 00, 03, 145.— Coues, Birds 

 Northwest, 1874, 400. 



Recurvirostra oecidentalis, Bd., Stans. Rep. Exp. Great Salt Lake, 1852, 320.— Newb., 

 P. R. Rep., 1857, vi, 00. (Young.) 



In Utah and Colorado, the Avocet is a common summer resident, though 

 occurring in these Territories in greater abundance during the migrations, 

 when on the way in spring to more northern breeding resorts, and in fall 



