Corvus ossifragus (May 16 [May 16, 1875])
1875. Dend. tiguina [Dendroica tigrina] Chordeiles popetue
May 17. [May 17, 1875] in a very hurried strain. Yesterday
(Sunday) I saw a flock of about 20
crows coming over our place cawing loudly
& chasing an individual that appeared
a little smaller than the rest. As they
were directly overhead the pursuers ceased
their clamor and the pursued called
out six or eight times in succession in
the not to be mistaken accents of Corvus 
ossifragus. I had made the acquaintance
of this bird at Washington D.C. in 1873
and am sure that I was not mistaken.
The whole flock soon swept out of sight
the Northern birds still harassing this
maratime [maritime] relation. Henry Purdie [Henry A. Purdie] saw
8 [male] Hel. chrysoptera [Helminthophila chrysoptera] at Newton the same
morning (May 16) Frank Whitney Esq. shot
a Dend. tigrina [Dendroica tigrina] to day at Belmont and
another in the 14 inst [May 14, 1875] at Waltham: both 
were [males] and were found among low cedar.
May 18 [May 18, 1875] Alternately cloudy and clear with very
high S.E. [southeast] wind. Drove over to W. Newton [West Newton]
last evening and spending the night
with Purdie [Henry A. Purdie] we rose early this morning,
and driving over to the "Upper falls"
2 1/2 miles took a boat above the dam
and spent the day on the river
I shot 15 birds, among them Chordeiles
popetue [male], Hirundo subis 6 [male] (Purdie held 2)
Dend. maculosa [Dendroica maculosa] [male] etc. found a nest
of Sayornis fuscus attatched [attached] to a R.R. bridge [railroad bridge]
and ready for the eggs. Birds were very
scarce in the woods & we saw nothing worthy
of note. I reached Cambridge by 6 P.M.