^"'me^"^] MousLEY, Birds of Hatley, Quebec. 179 



summer visitant ; abundant transient; April 26 to Oct. 16. Average date 

 of arrival (for four years) May 1; of departure (for four years) Oct. 13. 

 Eggs: May 27 to June 18. Of all the warblers at migration times this is 

 the most abundant and during the fall of 1914 it was more numerous than 

 ever, being found in small parties in almost every conceivable place. In 

 the spring the gi-eater bulk pass further north, only a very limited number 

 remaining to breed. Of the five nests that have come under my notice, 

 all were situated in small fir trees close to the trunk from three to six feet up, 

 and were composed externally of fine fir twigs and grass stems, lined inside 

 with horse hair, and a good supply of feathers from various small birds. 

 This feather lining which is usually present forms an interesting feature of 

 these nests in as much as in some cases, the bases of the feathers are im- 

 bedded in the bottom of the nest, with the tips protruding above, thus 

 forming a kind of little canopy over the nest. So pronounced was this 

 in one case, where the smaller feathers of a Blue Jay had been used that I 

 could not see the contents, until some of the tips had been put on one side. 

 Unfortunately this interesting nest was destroyed after two eggs had been 

 laid, the other four containing four young birds, one set of five, and two 

 sets of fom- eggs respectively, the average dimensions of the nests being: 

 outside diameter Sj inches, inside 2 inches; outside depth 2| inches, 

 inside 1^ inches. 



97. Dendroica magnolia (Wilson). Magnolia Warbleb. — Fairly 

 common summer visitant; May 9 to Sept. 7. Average date of arrival 

 (for four years) May 19; of departure (for three years) Sept. 5. Eggs: 

 June 5 to 15. This warbler is not nearly so plentiful at migration times 

 as the Myrtle, but the number of pairs remaining to breed exceed those of 

 the latter bird. Of the six nests I have found so far all were in small firs 

 from one foot three inches to nine feet up, saddled on to the branches, in 

 one case close to the trunk, in the others from a few inches to two feet away. 

 They were all composed of dry grasses held together by what look like little 

 balls of some brown or white woolly substance, usually heavily lined inside 

 with long black horse hairs, and fine red rootlets, the average dimensions 

 being: outside diameter 3j, inside If inches; outside depth 2, inside Ij 

 inches. One contained four young birds, another a set of three, and the 

 remainder sets of four eggs each. 



98. Dendroica pensylvanica (Linnaeus). Chestnut-sided Warbler. 

 — Fairly common summer visitant; May 16 to July 20. Average date 

 of arrival (for two years) May 20. Eggs: June 6 to 25. It was not until 

 the spring of 1914 that I noticed this dainty httle Warbler, and then only 

 two pairs were located. The present season however has been more pro- 

 ductive, double the number having been found breeding. Of six nests 

 located so far, three were on the roadside the others in second growth on 

 the outskirts of woods, one being within four feet of a Black-billed Cuckoo's 

 nest, which somewhat weighs against the recent statement of a writer in 

 ' The Oologist ' that one need never look for anything in the vicinity of a 

 Cuckoo's nest, owing to their habit of eating the eggs and young of other 



