WILSONIA. SETOrnAGA. 



Wilsonia chryseola, Ridyw. 



'\^'ilsonia chryseola, Ridc/ic. Birds of North ^- Middle Atner. ii. p. 714 

 (iy02) ; Sharjje, Hand-l. v. p. 119 (1906). 



An egg of Ridgway'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. CaXi^m-m?i {R. Ridgicay : Tristram Crowley Bequest. 

 Coll.). 



Wilsonia canadensis {Linn.). 

 Sylvia canadensis, Thien. Fortpjianz. yes. Vog. tab. xxii. fig. y (1845- 



. '^•^)- 

 Myiodioctes canadensis, Baird, Breicer ^- Ridgw. N. Atner. Birds, i. 



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



Biol. Centr.-Amer.,Ai;es, i. p. 166 (1881) ; Sharpe, Cat. Birds B. M. 



X. p. 432 (1885) ; Nekrk. Kat. Eiersamml. p. 91 (1899). 

 Wilsonia canadensis, Sharpe, Hand-l. y. 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 (aN"e;^>-Awn Co//.). Crowley Bequest. 



3. North America (y^»(/e/-so?2; Tris- Crowley Bequest. 

 tram Coll.). 



Genus SETOPHAGA, Swains. 

 Setophaga ruticilla (Linn.). 



Setophaga mitrata, Thien. Fortpflanz. ges. Vog. tab. xxix. fi"-. 11 

 (1845-54). 



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

 Rev. 1862, p. 280; Baird, Brewer^- Ridgw. N. Atner. Birds, i. ]x .323 

 (1874) ; Coues. Birds Colorado Valleg, p'. ;^37 (1878) ; S^ile. ^- Godm. 

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

 B. M. X. p. 411 (1885) ; Nehrk. Kat. Eiersanunl. p. 90 (1899) ; 

 Sharpe, Mand-l. y. p. 120 (1906). 



The eggs of the American Eedstart are mostly of a [.oiuted oval 

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

 similar to the eggs of Dendrcca 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. 



