214 



Field Marks. Too rare in Canada to be identified in life by sight. 

 Nesting. On or near the ground in bulky nest of twigs and rootlets firmly wrapped with 

 several thicknesses of leaves and lined with fine rootlets. 



Distribution. Eastern United States, not reaching the Canadian border except as 

 an accidental straggler. 



This species has been taken in Canada on only a few occasions. It 

 can be reasonably looked for only in the most southern sections in the 

 region of the lower Great Lakes. 



678. Connecticut Warbler, fr. — la fatjvettb du Connecticut. Oporornis agilis. 

 L, 5-40. A greenish Warbler. Male: clear lemon-yellow below; face and throat to upper 

 breast even bluish grey with a fine white eye-ring. The female is similar but grey paler. 

 Juveniles have the grey replaced by a lighter buffy shade of the back coloration. 



Distinctions. This species is so like the Mourning Warbler that at times they can 

 be separated only with difficulty. Adult males, having a conspicuous eye-ring and per- 

 fectly even grey throat and breast, are distinctive enough. Females can be told by the 

 eye-ring and by having the top of the head strongly suffused with the olive of the back 

 and not showing clear grey. Juveniles when they show the eye-ring are usually quite 

 distinctive, though Mourning Warblers of similar age have an indication of it. When the 

 eye-ring is not conclusive evidence the difference in the colour of the throat and breast, 

 a buffy olive instead of an even lightening and greying of the pure yellow below, is a good 

 guide. 



Field Marks. The evenly grey throat and white eye-ring of adults and the buffy 

 olive throat and buff eye-ring of the juveniles. Both this bird and the Mourning Warbler 

 walk instead of hop. 



Nesting. On the ground in nest of dry grass. 



Distribution. Eastern North America west of the Alleghenies. It appears to breed 

 along the edge of settlement in Canada but data are lacking. It is regular in migrations 

 only locally along the shores of lake Erie and lake Ontario. 



The Connecticut is one of the rarest of our regular Warblers. It is 

 a late arrival in the spring and is so retiring that it is seldom seen in the 

 autumn. There are not sufficient data to determine whether it is very local 

 in its migratory range or has been overlooked. It is to be looked for near 

 the ground in waste brush. 



679. Mourning Warbler, fr. — la fauvette de philadelphie. Oporornis Phil- 

 adelphia. L, 5-63. A greenish Warbler. Male: clear lemon-yellow below; whole head, 

 neck, and breast bluish grey with semi-concealed black spots on breast and throat giving 

 a fancied resemblance to crape which suggests the common name. The female is similar 

 but the grey lighter and without the crape markings on breast, thus resembling the male 

 of the Connecticut. Juveniles have the grey of the crown, etc., replaced with the body 

 green and the yellow of the underparts extends up neck to throat slightly modified by 

 fighter and greyish tinges. 



Distinctions. The Mourning Warbler can usually be distinguished by the crape on 

 the breast or by suggestions of it, the greyness of the crown, and the lack of eye-ring, 

 though juveniles sometimes have faint eye-rings. See previous species. 



Field Marks. The black crape of the breast and lack of eye-ring for adults and the 

 lack of sharp distinction between the breast, throat, and underbody yellows for juveniles. 



Nesting. On or near the ground in nest of strips of bark and other fibrous materials 

 lined with hair. 



Distribution. Eastern North America mostly west of the Alleghenies. Breeds along 

 the northern bounds of settlement west through the wooded sections of the prairie provinces. 



One of the late spring Warblers and one of the earliest to return in the 

 autumn, going through before many observers are on the watch for migrant 

 Warblers and thus usually slipping by unobserved. The latter half of 

 August is the time to watch for the Mourning Warblers. By the first of 

 September most of them have gone. 



