BIRDS, CATERPILLARS, AND PLANT LICE. 131 
feeding on them. A pair of Robins were building near by. When 
the female was arranging the materials of the nest the male was search- 
ing for food. When she started for another load he would fly after 
her. He flew to a small wild cherry tree and picked a few of the 
young tent larvee from the branch just above the web. 
May 1.—WNear the Fells, Malden. The White-throated Sparrows 
were quite plentiful all day. I observed one come from the thick 
brush along the edge of the swamp, and forage along in the lower 
trees. It went to a tent caterpillars’ web, and ate at least eight of 
them. Most of these Sparrows were foraging in the low bushes and 
on the ground. 
May 2.— A Field Sparrow took a number of tent caterpillars from 
a branch. The Field Sparrows were very plentiful, but I could not 
often get near enough to see what they were eating. A Chewink took 
some of the tent caterpillars from the branch that I had placed in the 
thicket to see if they would eat them. 
May 3.—JIn Malden. I saw a Robin go toa tree with many brown- 
tail larvee on-it, and eat several of them. ‘The day was very cold, and 
the larve were clustered together on the branches. The bird picked 
into the mass five times, and must have taken several each time. 
May 4.—JIn Stoneham. Six Cedar Waxwings came to an apple 
tree on which was a tent caterpillars’ web, and two of them picked the 
larve from the branches just above the web. Most of the time they 
were picking the small cankerworms. A Brown Thrush came to the 
wild cherry trees, and, after singing for a short time, ate a great many 
tent caterpillars, then flew to the thick bushes and began searching in 
the dead leaves. 
May 5.— An Oriole came to the small wild cherry tree and ate sev- 
eral tent caterpillars from the outside of the web, then tore it open and 
ate out nearly all that were in it. This was a large web when I first 
saw it; now there are but few of the caterpillars left, — the birds and 
bugs have nearly cleaned them out. A Redstart came to another small 
tree and took out three of the tent caterpillars from the twigs. 
May 6.— A Rose-breasted Grosbeak went to an apple tree with a 
tent caterpillars’ web on it, and took at least two of the larve and prob- 
ably took away more. 
May 9.—I observed a number of Golden-winged Warblers working 
near the cherry trees. Finally one went to the larger one, and after 
working in it for a time went to the branch that had the web on it and 
ate fourteen of the tent caterpillars. A male Nashville Warbler came 
to the tree and: took a few of the tent caterpillars, but he was so shy I 
could not make out distinctly how many he ate. 
May 10. —I located a male Red-winged Blackbird and two females 
that were building in a small swamp hole. They were feeding, every 
time I went past, in a small place where there were no bushes. There 
