Birds of Lewist on- Auburn 33 



it as leaving in September. It has a warble song in 

 early spring, but later the note is more like the sound of 

 an insect. 



36. (655) MYRTLE WARBLER; YELLOW-RUMPED 



WARBLER 



Our most common warbler during the spring and 

 autumn migrations. A few nest here. It may be seen 

 any time during the last week in April. In the autumn 

 it reappears in flocks by mid-September. It is now in 

 fall plumage, the principal marking being the yellow 

 rump. It is the last warbler to migrate south, October 28 

 being my latest date. According to Knight a few have 

 been seen along the coast during the winter months. In 

 late November Professor Baird went to the lighthouse at 

 Cape May to observe the migration. In the morning 

 after a severe storm several hundred of these warblers 

 were found dead. 



The bird has several songs that keep the observer on 

 the alert. 



37. (654) BLACK-THROATED BLUE WARBLER 



A fairly common migrant. I saw one as early as May 

 9 but it is more in evidence later. A few may be seen 

 till the last of the month. 



The latest I have seen this warbler is September 6. 



The song is "one of the most languid and unhurried 

 sounds in all the woods." The resemblance to the dron- 

 ing of bees was impressed on me one beautiful June 

 morning as I watched one on David's Mountain fly from 

 low bush to low bush in the morning sunshine, all the 

 time singing its characteristic hoarse song. 



38. (652) YELLOW WARBLER; SUMMER YELLOWBIRD 



A very common summer resident. Arrives first of 

 May unless delayed as in the cold spring of 1917. Its 



