Comparative Periods of Nestling Life 177 



COMI»ARATTVE PERIODS OF NESTLING LIFE 

 OF SOME NORTH AMERICAN NIDICOL.F] 



BY FRANK L. P.T'RXS 



[coNTixrED FRo:s[ jrxE issue] 



C0RVID.5]: 



American Magpie, 22 days (Wheelock, Bds. Calif., 387.) 

 Blue Jay, 20-21 days (Burns Ms.; Knight, Bds. Me., 387.) 

 California Jay, 18 days (Bendire, Life Hist., ii, 376.) 

 Canada Jay, about 15 days (Warren, Auk, xvi, 19.) 

 American Raven, about 28-30 days (Wheelock, Bds. Calif., 407; 



Bendire, Life Hist., ii, 399.) 



Northern Raven, about 30-35 days (Harlow, Cassinia, xiv, 11; 



Eifrir, Auk, xxil, 312.) 



American Crow, about 28 days (Redfield, Bd.-Lore, xi, 115; 



Knight, Bds. Me., 335; Redfield Ms.) 



California Crow, 25 days (Wheelock, Bds. Calif., 410.) 

 Fish Crow, about 21 days (Bendire, Life Hist., ii, 418.) 

 Clark's Nutcracker, about 18 days (Bendire, lb., 423); 17-21 



days (Bradbury, Condor, xix, 150); 28 days (Skinner, lb., xviii, 



64.) 



Pinon Jay, 21-22 days (Bendire. Life Hist., ii, 326; Wheelock, 



Bds. Calif., 495.) 



STURNID^: 



Starling, at least 15 days (Allen, Bd.-Lore, xiv, 112); 21 to 22 

 days (Brock, Zoologist, 1910, 117.) 



ICTERID^: 



Bobolink, 8 days (Otto, Bd.-Lore, xxi, 179-180); 10-14 days 

 Eaton, Bds. N. Y., 2, 224.) 



Cowbird, 10-12 days (Knight, Bds. Me., 343; Ferry Ms.; Abbott, 

 Bd.-Lore, xi, 149; Pierson, lb., xviii, 128.) 



Yellow-headed Blackbird, about 12 days (Roberts, Bd.-Lore, xiv, 

 252.) 



Red-winged Blackbird, 11 and 14 days (Herrick, Home Life of 

 Wild Birds, 12 and 21.) 



San Diego Red-winged Blackbird, more than 12 days (Wheelock, 

 Bds. Calif., 480.) 



Meadowlark, 10-12 days (Knight. Bds. Me.. 349; Wheelock, 

 Nestlings of Forest and Marsh, 25.) 



Western Meadowlark. 10-12 days (Saunders. Condor, xvi. 136; 

 Wheelock, Bds. Calif., 513.) 



Arizona Hooded Oriole. 14 days (Wheelock. lb., 519.) 



Baltimore Oriole, 15-18 days (Knight, Bds. Me., 353.) 



