1911J The Ottawa Naturalist. 223 



209. Dendroica pensylvanica, Chestnut -sided Warbler. A 

 moderately common migrant and breeder. It is found in de- 

 <;iduous second growth, and such spots in evergreen woods. In 

 Dow's Swamp they breed yearly. Extreme dates are: May 6th 

 to October 1st. The highwater mark in their migration is 

 reached May 17th. 



210. Dendroica castanea, Bay -breasted Warbler. An 

 abundant migrant. It passes through from May 16th to June 

 7th (1907) and again August 28th to September 26th. This 

 and the next species, and some of the Flycatchers, are our last 

 migrants in spring. Its song is scarcely heard here; it is almost 

 identical with that of the Redstart. 



211. Dendroica striata, BlackpoU Warbler. An abundant 

 migrant. Its chief travelling companion is the Bay-breasted. It 

 passes through from May 17th to June 12th (1907), and again 

 August 28th to September 26th. Song, a high, dry tsit tsit, 

 repeated six to ten times. 



212. Dendroica jusca, Blackburnian Warbler. A very 

 common migrant and moderately common breeder. In Beaver 

 Meadow, Dow's Swamp, Mer Bleue, Chelsea; etc., they may be 

 seen all summer. In spring they come from the 4th to the 2Sth 

 of Mav, reaching their climax on about the 17th; and in fall 

 the last are seen September 9th. 



213. Dendroica virens. Black-throated Green Warbler. A 

 verv common migrant and moderately common breeder. The 

 habitat of this species is in mixed woods, where some hemlock 

 occurs. Its song, dee dee deeah dee, announces its presence 

 long before one sees the bird. They begin to come May 1st, 

 attaining their highest numbers about the 17th. In fact they are 

 most common September 10th to 2 7th. October 2nd marks the 

 latest date. The Beaver Meadow waterfront is the place near 

 Ottawa where one may look for it with the certainty of finding 

 it in summer. 



214. Dendroica vigorsi. Pine Warbler. A moderately com- 

 mon migrant and rather rare breeder. True to its name it is 

 found in evergreens only, and nine times out of ten in pines. It 

 breeds in the stand of somewhat taller pines along the river- 

 shore of Blueberry Point, and in similar locations, but owing to 

 its habitat, is rarely seen. It is found here from May 7th on. 



215. Dendroica palmarum, Palm Warbler. The status of 

 this Warbler will have to be revised from that given in the last 

 list. It is a moderately common migrant only. I have taken 

 typical examples of it only on May 10th, 1905, at Blueberry Point 

 Aylmer, and September 20th, 1905, near Hurdman's Bridge. 

 The breeding birds found in our district and reported at various 

 times in The Ottawa Naturalist must go under the following 



I 



