[NatureNS] Nocturnal Migration for the 2nd and 3rd Weeks of July

From: "John and Nhung" <nhungjohn@eastlink.ca>
To: <naturens@chebucto.ns.ca>
References: <000001d541b6$77583360$66089a20$@gmail.com>
Date: Wed, 24 Jul 2019 05:09:52 -0300
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I have heard a few calls, down here on Wyman Road, south of Yarmouth, =
and suspect we have at least one nest around.  Now that you  mention it, =
though, I think I am hearing fewer this year. =20

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Have nothing quantitative to back me up, but thanks for the heads up.

=20

From: naturens-owner@chebucto.ns.ca =
[mailto:naturens-owner@chebucto.ns.ca] On Behalf Of Carmel Smith
Sent: July 24, 2019 12:53 AM
To: naturens@chebucto.ns.ca
Subject: Re: [NatureNS] Nocturnal Migration for the 2nd and 3rd Weeks of =
July

=20

John, I love your reports! Keep up the good work.

=20

One thing I've noticed at my place here this year, a total absence of =
Alder Flycatchers. I did hear one on the road, a km away, but normally =
here at the old homestead, there'd be two to three pairs breeding. This =
year, nada. And you know how loudly they call, it's unmistakable. So =
that gap in the birdsong here is conspicuous by its absence.

=20

Another area I check on as well had none. This area normally has three =
or four breeding pairs, and it's about 10 km from me.

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Not sure what to make of it. I miss my familiar friends when they don't =
show up. Total absence wouldn't just be normal attrition, as the =
breeding group here were probably of different ages, and started with =
one pair in an area with an ash tree as their central hangout. That and =
a myrtle shrub, right by a huge alder patch. They were successful there, =
and expanding in the past few years, as I imagine their offspring =
returned and set up house not far from the nest they hatched in. So it's =
a loss. Not sure if anyone else has noticed a difference in Alder =
Flycatcher occurrence this year?

=20

I have a feeling something befell this little group during Fall or =
Spring migration, there were so many hurricanes and storms last year, =
and they winter in central America and down to South America. Or maybe =
on the wintering grounds. Anyway, there were a lot of them here right up =
to the time they left. Image removed by sender. Emoji

=20

Keep up the research, John, it's one way we can get some kind of handle =
on numbers and tracking populations over time I imagine.

=20

Carmel Smith
Midville Branch, Lun. County, NS

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On Tuesday, July 23, 2019, 9:33:51 PM ADT, John Kearney =
<j.f.kearney@gmail.com> wrote:=20

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Hi All,

Early Shorebird Migration Monitoring. For six days, 7-13 July, I set up =
an AudioMoth microphone and recorder at the edge of Sandyland Ponds in =
Beaver River. This microphone does not reach as high into the sky as my =
regular, highly directional microphone for nocturnal migration, the 21c. =
However, I was running the microphone both during the night and in the =
early morning to detect the arrival of early migrating shorebirds. Being =
an omnidirectional microphone, the AudioMoth was a better match for the =
objective of detecting early shorebird migration in these coastal ponds.

=20

A total of 50 shorebirds were detected during the six days, most of them =
in the early morning rather than at night. The most abundant, as =
expected for these early dates, was Short-billed Dowitcher (19 estimated =
birds). Other shorebirds recorded included Least Sandpiper (11), =
Whimbrel (8), Greater Yellowlegs (3), Spotted Sandpiper (2), Killdeer =
(2), Willet (2), Semipalmated Sandpiper (2), and Lesser Yellowlegs (1). =
A Sora was heard calling on 12 July at 0237 hours.

My full-scale monitoring of nocturnal migration for the autumn of 2019 =
began on the night of 15 July 2019 at my usual monitoring station at =
Beaver River. This site, while only a couple of hundred meters from the =
coastal ponds, had just a few shorebirds throughout the week. These =
included 3 Least Sandpipers and 3 Spotted Sandpipers.

The first songbird in nocturnal migration was a Savannah Sparrow at 0142 =
hours on 22 July. A White-throated Sparrow followed about a half hour =
later and then 2 Yellow-rumped Warblers. These birds are not likely true =
migrants but are undertaking post-breeding movements across the =
landscape in search of foraging areas. In fact, the main migration of =
these three species comes relatively late in the autumn.

Follow the migration at Beaver River on my website =
<https://johnfkearney.com/category/nocturnal-migration-journal/>  or on =
eBird at NFC Station Beaver River or NFC Station Sandyland Ponds.

John

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