Date: 3/20/21 8:14 pm
From: <willc......> <willcbirds...>
Subject: [cobirds] Northeast Colorado 3/20/21
Hi All,

A few friends and I went up the NE Colorado today, spending most of our
time at Prewitt Reservoir and Jackson Lake. We had a pretty good assortment
of birds, with some notable highlights. I am going to give a quick trip
report and link the eBird checklists from each spot we birded.

We started out at the GREATER PRAIRIE-CHICKEN lek near Akron, where the
viewing is much better than last year. The grass is much shorter and the
birds are visible and close to the road, so it may be worth checking if you
are in the area. I will also note that there are noticeably fewer birds
than last year, but there could be a myriad of reasons for that.
Regardless, please don't get too close to the birds, but park up or down
the road from them to view the lek from a distance. (Be careful though
because the sandy road is known for swallowing cars.) Two birds actually
flew off the lek together and landed in the same spot, before one returned
and started dancing with renewed vigor, so one can only imagine what they
were doing in the privacy of the bushes.

https://ebird.org/checklist/S83778596

After freeing the car from the road near the lek, we went to the Logan
County side of Prewitt Reservoir to find the continuing EASTERN TOWHEE,
which we found almost immediately. It was with a male Spotted Towhee, but
was very skulky and hard to see. Overall, the bird looks good for a pure
Eastern, but I would love it if someone could get some recordings of the
bird! Interesting aside, the bird was also moving across the county line
between Logan and Washington, and I think that it represents the 2nd
Washington County record for that species. Other highlights at Prewitt were
3 Red-breasted Mergansers, many Aythya, and large amounts of Snow, Ross's,
and Canada Geese, with a few Greater White-fronted Geese mixed in, and a
single Cackling tying the goose slam together nicely.

https://ebird.org/checklist/S83778959
https://ebird.org/checklist/S83778946

On our way out of Prewitt, we stopped at the Hillrose Sewage Ponds, which
were pretty birdy. Two Lincoln's Sparrows, a Golden Eagle, migrating male
Northern Harriers, territorial American Kestrels, and a couple of Mountain
Bluebirds made this quick stop quite enjoyable.

https://ebird.org/checklist/S83780421

After Hillrose, we stopped at Brush Prairie SWA, where the walk all the way
out to the ponds turned out to be a worthwhile venture. Highlights were a
SAGE THRASHER, Greater Yellowlegs, and a nice assortment of ducks.

https://ebird.org/checklist/S83778862

When we finally got to Jackson, it was about 2:30 and we began searching
for Long-eared Owl in the russian olives. We were successful pretty
quickly, with great, point blank looks at a Long-eared Owl. After a quick
look, we backed off and let the owl be, but it was pretty incredible to get
such good views in the daytime.

https://ebird.org/checklist/S83779050

We then checked Andrick SWA, where we got ~75 Sandhill Cranes and 14 Bald
Eagles. Right at the entrance to Jackson Lake SP, while scoping the ponds,
we picked out 4 Mountain Chickadees working a feeder within the trailer
park across the road.

https://ebird.org/checklist/S83780419

After Andrick, we went to the other side of Jackson to the parking lot at
the end of road 305. We spent a good while scoping the water there, with
the highlights being Horned Grebe, lots of pelicans, and a Glaucous Gull
far out on the water. Another highlight, albeit an unidentified one, was a
far gull that we saw a few times in flight. Luke and I got on it at about
the same time and we both were incredibly surprised at the extreme darkness
of the bird. It was flying with a Ring-billed Gull and was about the same
size, but possibly more streamlined in shape, but the flight pattern was
the same. The really surprising part was that it was the exact color of a
Heermann's Gull. We contemplated jaeger or possibly a really dark Mew Gull,
but in the end it just went down as a gull sp. due to the short duration of
observation and the distance. But, if anyone is out there birding anyways,
it may be worthwhile to scan the gulls and see what you can find!

https://ebird.org/checklist/S83779109

Best,

Will Anderson
Boulder

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