New World Starlings. 73 



Yellow Meadow-Starling {Agelceus Jlavus). 



The female has a shorter beak than the male, and is browner, 

 slightly streaked above ; eyebrow-streak, rump, and body below 

 yellowish ; a female, probably in young plumage, is greyish below 

 with dusky streaks. 



Yellow-shouldered Marsh-Troupial {Agelasticus thilius). 



In the female the beak is shorter and a trifle weaker than in the 

 male ; she is brown, streaked with black ; with buffish eyebrow 

 extending back to nape ; under parts paler. A. humeralis is rarely 

 imported. My own example is the only one I have seen in captivity, 

 and may possibly not be typical, but it has a very striking song, 

 quite unlike A. thilius. 



Dark Green Maize-eater (Pseudoleistes virescens). 



In the female the beak is longer and tapers more than in the 

 male ; her plumage above is paler and more olivaceous. 



Common Cow-Bird {Molothrus .pecoris). 



The beak of the female is smaller and narrower than that of the 

 male, and is brown ; her plumage is quite different, brown mottled 

 with black above, ashy brownish mottled blackish below; throat 

 ashy whitish. 



Silky Cow-Bird [Molothrus bonariensis). 



The beak of the female is more slender and tapering than in the 

 male ; when viewed from above it is less full in the middle. 

 Instead of the glossy blue-black or blue and greenish-black of the 

 male, she is brown, paler on the under parts, and with ashy whitish 

 throat. 



Purple Cow-Bird {Molothrus purpurascens). 



The female has a more slender, shorter, and browner beak than 

 the male ; her plumage above is pale dust -brown with dusky 

 mottling ] below considerably whiter. 



Bay Cow-Bird {Molothrus badius). 



The female apparently has a weaker and shorter beak than the 

 male, but if all the specimens I examined are correctly sexed, it 

 appears to vary considerably. I can discover no difference of 

 plumage. 



Chilian Meadow-Starling {Gurceus aterrimus). 



The female is smaller than the male, with a greyish-indigo gloss in 

 place of the sooty-black of that sex ; her bill is shorter and less 

 tapering. 



