Study of the Avi-fauna of Lake Erie Islands. 179 



during the waves of migration. It was distributed everywhere, but 

 was less numerous at the swamp than among the larger trees and 

 in the cedars. 

 Vcrmivora percgrina. — Tennessee Warbler. 



It was present in some numbers on September 1st. 1905. The 

 first seen in 1910 was on August 15, a single bird; the next on the 

 17th, two birds, and from the 18th to the end of our staj' it was 

 one of the common birds scattered everywhere among the trees and 

 bushes. 

 Dendrojca ii(irina. — Cape May Warbler. 



This was one of the pleasant surprises of the 1910 study. Ou 

 the Ohio side it has always been scarce in spring and absent in 

 fall. We noted the first one on August 19, the next on the 22d, 

 the next on the 25th, it suddenly became common on the 26th, 

 and remained so until September 1, when there was a marked de- 

 crease and the last was recorded ou the 5th. The unwariness of 

 this warbler made it possible to study the various plumages at 

 close range. Specimens of every phase of plumage were collected. 

 The first birds to appear were in the juvenal plumage, and it was 

 only during the last week of our stay that perfect plumaged birds 

 were seen. We had many about our mess tent during meals. 



Dendroica (estiva (estiva. — Yellow Warbler. 



Common on all visits, and common in 1910 until September 2. 

 The last was seen on the 2d. Individuals were singing up to the 

 last day. While there were more individuals in the vicinity of 

 the swamp than elsewhere, there were many scattered over the 

 whole of the point, after the migrations began. Occasionally indi- 

 viduiils would Hit down to the last brush on the point, or even oc- 

 casionally fly well out upon the sand spit, or even essay the cross- 

 ing to Middle Island, but most of them came back. Numerous 

 nests were found in the vegetation of the swamp. 



Dendroica C(erulescens c(rrulescens. — Black-throated Blue Warbler. 

 It was present in small numbers on September 1, 1905. The first 

 to appear in 1910 was on August 26, two, and after that date a 

 few were found every day until we left the island. The birds kept 

 well down among the cedars and the brush of the deciduous woods. 

 A few were found in the button-bushes bordering the swamp. All 

 phases of plumage were noted. 



Dendroica magnolia. — Magnolia Warbler. 



Present on all visits in fair numbers. In 1910 the first seen was 

 on August 19, the next on the 21st. and every day thereafter until 

 we left. It became decidedly common on August 30 and remained 



