BIRDS OF ONTARIO. 53 
Mr. W. L. Kells records having found several nests near Listowel, 
and I have found it in summer near Toronto. 
Arrives about the middle of May, departs at the end of August. 
SuspGENuUS GEOTHLYPIS. 
273. Mourning Warbler. 
(Geothlypis philadelphia.) 
A rather rare summer resident. Breeds throughout its range in 
the Province. 
Arrives about the twentieth of May, departs at the end of August. 
274. Maryland Warbler. 
(Geothlypis trichas.) 
A common summer resident. Breeds throughout its range in the 
Province. 
Arrives about the tenth of May, departs at the end of September. 
Genus ICTERIA. 
275. Yellow-breasted Chat. 
(Icteria virens.) 
A very rare summer resident of the southwestern part of the 
Province. 
Genus WILSONIA. 
*27€, Hooded Warbler. 
(Wilsonia mitrata.) 
A very rare summer visitor to the south-western counties. 
£77, Wilson’s Warbler. 
(Wilsonia pusilla.) 
A rather rare migrant in spring and autumn, probably breeding 
in the northern part of the Province. 
Arrives about the twentieth of May, departs early in September. 
278. Canadian Warbler. 
(Wilsonia canadensis.) 
Common summer resident, breeds throughout its range in the 
Province. 
Arrives early in May, departs at the end of August. 
