Comparative Periods of Nestling Life 181 



10-12 days (Heil, Bd.-Lore, x, 103.) 



Curve-billed Thrasher, 12 days (Clark, Auk, xxi, 216.) 

 California Thrasher, 12-14 days (Wheelock. Bds. Calif., 271.) 

 Crissal Thrasher, 11-12 days (Wheelock, lb., 276.) 



TROGLODYTID^: 



Carolina Wren, at least 10 days (Van Gilluwee, Bd.-Lore, xil, 



150.) 



Bewick's Wren, 14 days (Wiley Ms.) 



House Wren, 14 days (Knight, Bds. Me., 588; Bayles, Auk, 



xxxiv, 90); 15 days (Burns Ms.); 17 days (Sherman, Wils. Bui., 



95, 94.) 



Western House Wren 16 days (Wheelock, Bds. Calif., 287.) 

 Alaska Wren, 22 days (Heath, Condor, xxii, 55.) 

 Tule Wren, 12 days (Wheelock, Bds., Calif., 292.) 



CERTHIID^: 



Brown Creeper, 13 or 14 days (Tyler, Auk, xxxi, 50.) 

 Sierra Creeper, 15 days (Wheelock, Bds. Calif., 296) 



SITTID^: 



Red-breasted Nuthatch, 14 days (Moore, Ool., 23, 154); more 

 than 14 days (Shaw, Bd.-Lore, xviii, 166.) 



Rocky Mountain Nuthatch, more than 11 days (Richards, Con- 

 dor, X, 194.) 



PARID^: 



Plain Titmouse, 16 days (Wheelock, Bds. Calif., 350.) 



Chickadee, 13-14 days (Knight, Bds. Me., 607; Redfield Ms.; 

 Forbush, Bd.-Lore, xiv, 373); 14-15 days (Stanwood, J. M. 0. S., 

 xiii, 28); 18 days (Link Ms.) 



Mountain Chickadee, nearly 21 days (Wheelock, Bds. Calif., 353.) 



Verdin, 21 days (Wheelock, lb., 557.) 



CHAMAEID^: 



Wren-tit, 16 days (Newberry, Condor, xviii, 65.) 



SILVIID^: 



Ruby-crowned Kinglet, 8 days (Head, Bd.-Lore, v, 53.) 

 Western Gnatcatcher, at least 9 days (Merriam, Auk, xiii, 124.) 



TURDID^: 



Wood Thrush, 10 days (Ferry Ms.; Johnson, Osprey, iv, 18); 



13 days (Pierson Ms.; Burns Ms.); 14 days (Judson, Bd-Lore, 



xviii, 213.) 



Wilson's Thrush, 10 days (Herrick, Home Life, 12.) 

 Russet-backed Thrush, about 14 days (Atkinson, Ool., xvi, 180.) 

 Olive-backed Thrush, 10-12 days (Stanwood, Wils. Bui, 83, 448, 



and 84, 121.) 



Hermit Thrush, 10 days (McClintock, Auk, xxvii, 417); 10-12 



