WILSONIA. SETOrHAGA. 



Wilsonia chryseola, Ridyw. 



Wilsonia chryseola, Ridgw. Birds of North 8? Middle Amer. ii. p. 714 

 (1902) ; Sharpe, Hand-l. v. p. 119 (1906). 



An egg of Ridg way's Warbler is of a rather wide, pointed oval shape 

 and slightly glossy ; it is pure white, finely spotted all over the 

 shell with light red and lilac, the markings being most numerous 

 towards the larger end. It measures '6 by '48. 



1. California (R. Ridyway : Tristram Crowley Bequest. 

 ColL}. 



Wilsonia canadensis (Linn.). 



Sylvia canadensis, Thien. Fortpflanz. ges. Vog. tab. xxii. fig. v (1845- 



t 64). 

 Myiodioctes canadensis, Baird, Brewer 8f Ridgw. N. Amer. Birds, i. 



p. 320 (1874) ; Coues, Birds N.-West, p. 80 (1874) ; Salv. $ Godm. 



Biol. Cent?:- Amer., Aves, i. p. 166 (1881) ; Sharpe, Cat. Birds B. M. 



x. p. 432 (1885) ; Nehrk. Kat. Eiersamml. p. 91 (1899). 

 Wilsonia canadensis, Sharpe, Hand-l. v. p. 119 (1906). 



Four eggs of the Canadian Warbler are of a pointed oval shape 

 and exhibit little or no gloss. They are of a yellowish-white, 

 spotted and blotched with brownish-pink, reddish-brown, and 

 lavender, the markings being confluent at the larger end and 

 forming a dense cap or zone. They measure respectively : '76 by 

 -56 ; -7 by -5 ; -7 by -48. 



1. North America (Nehrkorn Coll.). Crowley Bequest. 

 3. North America (Anderson: Tris- Crowley Bequest. 

 tram Coll.). 



Genus SETOPHAGA, Swains. 

 Setophaga ruticilla (Linn.). 



Setophaga mitrata, Thien. Fortpjlanz. ges. Vog. tab. xxix. fig. 11 

 (1845-54). 



Setophaga ruticilla, Ross, Canad. Nat. vii. p. 145 (1862); id., Nat. Hist. 

 Rev. 1862, p. 280; Baird, Brewer $ Ridgw. N. Amer. Bird*, i. p. 323 

 (1874) ; Coues, Birds Colorado Valley, p. 337 (1878) ; Sulo. '$ Godm. 

 Biol. Centr.-Amer., Aves, i. p. 178 (1881); Sharpe, Cat. Birds 

 B. M. x. p. 411 (1885) ; Nehrk. Kat. Eiersamml. p. 90 (1899) ; 

 Sharpe, Hand-l. v. p. 120 (1906). 



The eggs of the American Redstart are mostly of a pointed oval 

 form and exhibit a small amount of gloss. They are somewhat 

 similar to the eggs of Dendrceca cestiva, but the ground-colour is 

 generally white, instead of greenish-white, and the brown markings 

 have usually a decided rufous tinge. Specimens measure from -6 to 

 7 in length, and from *48 to '52 in breadth. 



