Buteo Pennsylvanicus, Tetrao Canadensis
Maine (L. Umbagog. [Lake Umbagog]) Note of E. flaviventris [Empidonax flaviventris]
1876
Wenesday [Wednesday]
June 14  Cloudy all day with frequent showers in P.M.
Went over on the Tyler path with Stone in
the morning and hunted hard for nests
but found nothing excepting a M. melodia's [Melospiza melodia] 
in Abbott's field. In [It] was sunk in a hollow
in the ground in a clover field. The [female] fluttered
off almost under my feet but like most
of the birds here showed little subsequent
concern. There were 5 eggs which had been
incubated about 8 days. Harrington found
a nest of this bird yesterday with six
fresh eggs. This is a larger number than
I have heard of before. I shot a very
fine adlt [adult male] Buteo Pennsylvanicus. The pair
rose from the ground on the edge of Abbott's 
field and lit on dead stubs. I walked
up slowly to within about 40 yds. of the [male]
and shot him. The [female] flew a short distance
only and I might have secured her too
if I had another heavy charge with
me. As it was I shot No. 11 at her and failed
to kill. Both birds kept up their shrill
whistling cry as I approached them. I
often see them sailing high up in the sky
in pairs uttering almost invariably this
unmistakable note. The testes of the [male] were
not larger than [illustration]. The stomach was filled
with bones of small mammals and the
remains of Coleoptera. Heard a single H. peregrina [Helminthophila peregrina]
on the Tyler road. Just after entering the woods
from Abbott's field I spied a fine [male] Tetrao
Canadensis in the path. The next moment
he rose with a feeble flutter & lit on an alder
low down. I watched him some time and
noticed that his red comb over the eye was very
conspicuous, that he held his tail high [illustration] with
[margin]the under coverts straggling down below it; & that he turned his head very slowly
and cautiously. Turning to walk away to good shooting distance, he immediately
took wing coming directly at me & lighting with [within] six feet of my heels, but almost
immediately after he ran skulking into the woods and again rose to a low limb
when I shot him. Heard a Myiarchus crinitus behind the barn all day. E. flaviventris [Empidonax flaviventris] is very abdnt. [abundant] on the Tyler road & the [males] were singing sl-ap everywhere. This note is very like the ordinary 
song of E. minimus [Empidonax minimus] in tone but in general character it is very like the sl-ip of Cot. Henslowii [Coturniculus Henslowii]