198 
1868 . 
May 4. 
Aug, 8, 
Sept, 8, 
1869. 
Apr. 29, 
Sept,10. 
1870. 
May 3. 
* 6 . 
1871. 
Apr. 20. 
May 6. 
“ 11 . 
1874. 
June 5. 
1876. 
May 9, 
Sept. 9, 
“ 9. 
• 11 . 
• 14. 
1877. 
Aug. 26. 
Chaotura pelasgica, 
Middlesex County, Mass. 
One flying over Prosh Pond. 
Numbers, 
Several. 
Throe on Prosh Pond. 
Several, migrating. 
One. 
General arrival. 
One (Concord), 
Throe (Cambridge), 
Abundant. 
Saw one break off a large dead twig and carry it 
xn Its bill for at least half a mile, finally dropping 
with It into a chimney. ^ 
About fifty circling o'^er the river at Watertown. 
Saw several. 
A number on groat Meadows, Concord, and at evenine 
a groat swarm flying about over the tovm. 
About a dozen flying about over Watertown. 
Several at Concord, 
During this cloudy and foggy morning, the trees 
ripping after yesterday’s heavy rain, at least one hun¬ 
dred chimney swifts were circling aroind the toprof tL 
elm in front of the Buttricks* in Concord, picking off 
insects from the top-most leaves. 
( 
