80 BIRD-SONGS ABOUT WORCESTER. 



contents. Some birds, however, rear sev- 

 eral broods in the season, and may some- 

 times be found nesting even as late as the 

 last of July, while all birds whose first 

 efforts at raising their quota of young have 

 for any reason miscarried are pretty sure 

 to make a second attempt, which often 

 carries them far into the summer. Thus 

 the wood-thrush, when the first nest has 

 been robbed, a thing which often happens 

 by reason of its exposed position, will 

 sometimes continue singing almost to the 

 middle of August. 



Until recently the robins have been in 

 full song, and within a few days I have 

 heard sing fitfully and as if by accident, 

 the yellow-warbler, the bluebird, the war- 

 bling-vireo, the cat-bird, the pigeon-wood- 

 pecker, and the golden-robins. The song 

 of the yellow-warbler interested me par- 

 ticularly. I had not heard him for a 

 month and was therefore much surprised 

 yesterday to hear his song issuing from 

 the moist thickets of Peat Meadow. All 

 the notes were there, but the song was 



