I afterwards saw Bensen and he tells me that these 
• 
Solitary 
Hawks have killed two more full-grown hens since the 21st. 
The male killed one and the female another, both while he 
was looking on. In each instance the hen's head was eaten 
off before he could get to her but neither Hawk attempted 
to carry his prize away when he flew. Bensen is positive 
that these Cooper's Hawks are the robbers of his poultry 
yard and I am now convinced of it, also. 
I spent the day overseeing and working with men near 
Davis's Hill. A Solitary Vireo (the first) was singing at 
Vireo 
intervals in the pines near the glacial hollow. 
Another arrival was a White-throated Sparrow, a 
solitary bird which I started among alders in a swamp and 
White- 
which, to my surprise, was an immature, i.e. gray-throated 
throated 
bird. This is the first instance that has come under my 
observation where a bird in this plumage has appeared at an 
Sp arrow 
early date. 
Carolina 
The Doves have certainly deserted my woods, doubtless 
because of the presence of the Cooper's Hawks which have 
Doves 
probably killed several of them and frightened away the others. 
I heard one cooing in the afternoon, in pines on Prescott’s 
land and saw another flying high across the river at sunset. 
Yellow Palm 
V^^blers 
The large flock (there proved to be fifteen or 
twenty bitds) of Yellow Palm Warblers noted this morning 
spent the entire day in the pines behind Ball's Hill. The 
Ruby-crowned Kinglets with th®m sang at frequent intervals 
Osprey 
throughout the morning. The Osprey a.lso stayed during the 
day, making his headquarters in the big pines on D a vis's Hill 
and whistling a good deal. 
XI 
