176 MousLET, Birds of Hatley, Quebec. lAprH 



87. Lanius ludovicianus migrans (W. Palmer). Migrant Shrike. 



— Rare summer visitant; April 13 to Sept. 10. Average date of arrival 

 (for two years) April 20; of departure (for two years) Sept. 4. Eggs: 

 May 21. I have only seen this shrike on very few occasions, and then with 



• one exception not within three miles of Hatley. In the spring of 1913 I 

 located a nest near Massawippi in an old apple tree quite close to the road, 

 which contained young birds. On visiting the locality again the following 

 spring another nest was found containing five eggs also in an apple tree, 

 and within thirty yards of the previous one, and these two are the only 

 records I have, as the birds could not be found in the locality this year. 



88. Vireosylva olivacea (Linnaeus). Red-eyed Vireo. — Common 

 summer visitant; May 20 to Sept. 10. Average date of arrival (for four 

 years) May 24; of departure (for two years) Sept. 10. Eggs: June 11 to 

 July 22. This is certainly the most abundant of the Vireos, although 

 since 1912 when nests of the two rarer species the Yellow-throated and 

 Blue-headed were found, and this and the Warbling Vireo were more than 

 usually plentiful, it has really been scarce, no more than three nests having 

 been located during the past two years, whereas in 1912 one could hardly 

 go out for a walk without finding one or two. This and the Yellow Warbler 

 are the only birds that I have found victimized by the Cowbird, the one 

 nest found this year containing a young Cowbird and one addled egg of 

 the owner only. 



89. Vireosylva gilva gilva (Vieillot). Warbling Vireo. — Fairly 

 common summer visitant; May 20 to Aug. 20. Average date of arrival 

 (for four years) May 24; of departure (for two years) Aug. 17. Eggs: 

 June 13. This Vireo can generally be found nesting in the woods as well 

 as in shade and apple trees in orchards, for which latter it seems to have a 

 special liking. A pair have nested for three years in succession in an or- 

 chard near my house, twice in an apple tree and once in a maple, but 

 during the present season, 1915, I have only observed the species at migra- 

 tion times. 



90. Lanivireo flavifrons (VieUlot). Yellow-throated Vireo.^ 

 Rare summer visitant; May — to Aug. 13. Eggs: June 24. I have only 

 come across one nest of this species so far in 1912, which like that of the 

 Blue-headed was a handsome affair, suspended from a forked branch of a 

 beech tree nine feet above the ground, and contained four quite distinctive 

 eggs, the spots being much larger and browner on three of them, than is 

 usual in Vireos' eggs, whilst the fourth is immaculate, the average size of 

 the set being .81 X .60. I can give no specific date of arrival in 1912 nor 

 have I seen it since except in the fall of the present year 1915 when a num- 

 ber were observed on August 13 migrating in company with the Warbling 

 Vireo. 



91. Lanivireo solitarius solitarius (Wilson). Blue-headed Vireo. 



— Rare summer visitant; May — to . Eggs: June 26. Only a 



pair of this handsome species has been noted so far and their nest located 

 in 1912. This latter was an elegant structure suspended in the forked 



