TAVERNER AND SWALES ON POINT PELEE BIRDS. 85 



151. *Virco olivaceus. Red-eyed Vireo. 



Practically common on all seasonable visits. They were not yet 

 present May 1-4, 1908, but bave been observed on all otber May 

 dates. In September, 1905, tbey were common until the 8th, then 

 one was seen the llth, and no more up to the date of our departure, 

 the 15th. In September, 190G, they were numerous during our visit 

 the first three days of the month, but on our return the 15th, there 

 were none noted until the 17th, when from one to four were seen 

 each day to our departure. Some remained well into October, and 

 several were noted the 14th of that month. From August 24th to 

 September Gth, 1907, they were seen every day, their numbers culmi- 

 nating the 20th. The next day but one was observed, and from then 

 on to the day of our departure but scattered individuals were seen. 



152. *Vireo philadelphicus. Philadelphia Vireo. 



Apparently a regular and not uncommon spring and fall migrant, 

 although we never observed it on the Point until September 1, 190G, 

 when a male was secured and one again on each of the two succeed- 

 ing days. On the return visit, the same month, two or three were 

 seen or secured each day from the 17th to the 21st. The following 

 spring, 1907, five were observed May 31 and four the next day. 

 None were recognized during the fall trip of August 24-September 

 G, 1907. On this last occasion, however, all the early fall migrations 

 were over a week late, and consequently the great probability is that 

 they had not yet arrived. In the fall the Philadelphia Vireo can 

 be distinguished, under favorable circumstances, with no great 

 difficulty, owing to the comparatively bright yellow underparts 

 that serves at once to distinguish it from either the Red-eyed or 

 Warbling Vireos with which it is apt to be confused. In the spring 

 its likeness to the Warbling is most confusing, and then even an 

 experienced eye should be aided by the ear. Of course with the 

 bird in the hand, the absence of the rudimentary or "bastard" lir<t 

 primary is always an easy and conclusive test of the Philadelphia. 



153. * Vireo gilvus. Warbling Vireo. 



The Warbling Vireo has always been a common bird along the 

 western or wooded sections of the Point on all May visits, except 

 those of May 1-4, 1904, and May 31-June 1, 1907. From this latter 

 dute we argue that it is not a common summer resident. Our only 

 fall date is September 3, 190G, when a few were noted. This V 

 rarely lingers in this section after the first of September. 



154. Vireo flavifrons. Yellow-throated Vireo. 



Though a common summer resident and still more numerous mi- 

 grant in the Detroit vicinity, strangely enough, it seems to !> a 

 bird on the Point. Our few records are not thoroughly satisfactory. 



