Sunday, January 8, 2017

Wheat Ridge Greenbelt & First Creek Trail

January 8, 2017

Richard Stevens:

Rebecca Kosten and I delivered a late Christmas present to a friend who lives near Wheat Ridge Greenbelt (Jefferson County).  Unfortunately, she has not seen the male Northern Cardinal that off and on visits her yard for seven weeks.

A resident Eastern Screech-Owl in her backyard briefly appeared while we ate lunch on her back patio.  Afterwards, Rebecca and I walked Wheat Ridge Greenbelt at Prospect Park looking unsuccessfully for the Rusty Blackbirds that have been reported twice in the last week.

Later, I dropped Rebecca off to shop in Aurora and drove to the First Creek trail (Denver) north of Buckley Road and 56th Avenue.  I walked from the west end of the trail at Buckley Road to the eastern end at 56th avenue.

Two Red-tailed Hawks were perched near Pena Blvd and the Trail.  A Prairie Falcon stood on one of the light poles overlooking the Light Rail tracks.

Near the end of my hike, I noticed sixty+ House Sparrows in the large brush pile northeast of the horse corrals.  At least two dozen White-crowned Sparrows were also there. 

The flock eventually flew to the tall yellow grasses bordering the northeast corner of the corrals.  The many sparrows would walk along the ground, but in the middle of the grass clumps.

Finally I picked out a Harris's Sparrow although only saw bits and pieces of the bird at any one time.  I watched a waited for 30+ minutes for the birds to either come out of the grasses or return to the brush pile.

Regrettably, a Sharp-shinned Hawk flew in and perched on one of the fence posts.  Witness photos of the Hawk were taken.  Then the Sharp-shinned Hawk flew down and caught one of the sparrows.

The capture was near the Harris's Sparrow location.  I hoped it was not true.  Bad for a White-crowned Sparrow, it was not the Harris's Sparrow.  I watched the Sharp-shinned Hawk devour the sparrow in the next fifteen minutes or so.

The Hawk then returned to the post and looked for another victim.  This time the large flock of birds flew back to the brush pile.  Shortly thereafter, the Sharp-shinned Hawk followed and perched above the disappearing birds.

Little bird movement was observed in the next twenty minutes as the Sharp-shinned Hawk stood sentinel.  In the fading light, I had to return to my car, which was almost a mile away.

Temperature in the afternoon was around 50 degrees; winds were 4-6 mph, not a bad January winter day!

Saturday, January 7, 2017

Return to Aurora Reservoir

January 7, 2017

Richard Stevens:

I returned to Aurora Reservoir (Arapahoe County) this afternoon.  Temperature was 28 degrees at 2:00 pm.  Fortunately, winds were calm.  It took awhile to decide if I would first walk down from the southeastern gate or drive to the swim beach (northern entrance). 

I chose to enter from the south end first.  As I walked down to the lake, it came to me that my recently purchased entrance pass was on the office desk.  There would be no northern entrance today.

The lake was scoped from the bench at mile 2.5.  Both Senac and Lone Tree Coves were ice and snow covered.  Over a hundred ice fishing people were standing over newly cut holes in the ice.  Everyone has to have his or her own hobby; it would not be one of mine.

Thousands of White-cheeked Geese stood on the ice covered lake.  Less than five percent of the reservoir had open water.  Many of the open areas were quite small.

The closest group of geese included three white and two blue phase Snow Geese (no blue phase Ross's Goose today).  A group of White-cheeked Geese in Lone Tree Cove included six Greater White-fronted Geese.  While two additional Greater White-fronted Geese and one Ross's Goose were at the mouth of Senac Cove.

The closest open water to the bench was lined with hundreds of gulls.  These included seven Thayer's Gulls and five Lesser Black-backed Gulls.  Farther out another Thayer's Gull and two additional Lesser Black-backed Gulls were found.

Even farther out gulls surrounded a sliver of open water; I could see the 1st cycle Great Black-backed Gull and Glaucous Gull.  I watched this pool at the limit of my 65mm eyepiece for over half an hour.

Eventually most of the gulls flew off and I could see the ducks swimming around.  The two White-winged Scoters were among a dozen Common Goldeneyes and several dozen American Coots.  I was not able to find the Long-tailed Duck of previous weeks.

At 4:00 pm, thousands of the White-cheeked Geese took off for nearby fields.  This opened up views of the groups of gulls around the lake.  However, nothing extra was added to my trip list.

Trip Into the Colorado Mountains (adding to our 2017 Bird Lists)

January 6, 2017

Richard Stevens:

After staying home during yesterday's snowstorm, I had to get out of the house.  I met Terry Michaels on the west side of Denver and headed into the mountains.

Along the way, I stopped at Box Elder Creek where it crosses Weld County Road 4.  No Rusty Blackbirds were just north of CR 4 where they were on 1/4.  Noticing a bird quite a ways up the creek, I got out my scope.  It was a male Rusty Blackbird.  No additional birds flew up from the creek during my stay.

Terry & I drove up to Loveland Pass.  It was a sunny day with little wind (unusual for the Pass).  Unfortunately, we could not find any White-tailed Ptarmigan.

Then, we drove into Silverthorne.  A quick detour to the southwestern Lake Dillon inlet found no Purple Sandpiper (had not been reported since 12/31).

A visit to a friend's home added some nice mountain species to our 2017 bird checklists.  We observed three species of Rosy Finches, Mountain & Black-capped Chickadees, Pine Siskins, Downy & Hairy Woodpeckers, three species of Nuthatches, Evening and Pine Grosbeaks!

The highlight was an American Three-toed Woodpecker drumming a few houses away!  Although, seeing three species of Rosy Finches is always a highlight!

We returned to Loveland Pass in the afternoon, again missing Ptarmigan at the usual locations.  Then just as the sun disappeared behind the mountains, two White-tailed Ptarmigan flew down from the high western trail and landed fifteen feet from the wooden fence west of Highway 6!

It was a great ending to a superb birding day!

Wednesday, January 4, 2017

Search for Rusty Blackbirds and Short-eared Owls

January 4, 2017

Richard Stevens:

I drove by where Box Elder Creek crosses Weld County Road 4 today.  Rebecca and I were fortunate to see three Rusty Blackbirds there yesterday. 

Considering the weather (snowstorm) the Rusty Blackbirds did not fly up into the cottonwoods today.  Perhaps they are still there and stayed along the creek.  Again, I could not find the landowner to get permission to walk the creek.  Maybe tomorrow?

A Short-eared Owl stood on the fence line north of where Third Creek crosses West Cargo Road.  Light was terrible, still nice to find any Short-eared Owls!

Winds were 8-9 mph; gusts to 14 mph today.  Light snow fell most of the day.  High temperature was in the low 20s.

Tuesday, January 3, 2017

From Chatfield Reservoir to Roads Northeast of Barr Lake

January 3, 2017

Richard Stevens:

Temperatures barely achieved 30 degrees today.  Winds were 8-9 mph with gusts to 16 mph.  It was cold especially when exposed to the wind.

This morning, Terry Michaels and I went south to Chatfield Reservoir (Jefferson/Douglas) and relocated the Trumpeter Swan that has been reported for the last eight days.

Then we scoped South Platte Park Reservoir (Arapahoe/Jefferson) and found a Long-tailed Duck in Arapahoe County and another in Jefferson County!

Misses: we did not see any Black Scoters or Greater Scaups today.

In the afternoon, Rebecca Kosten and I drove the "country roads" north and east of Barr Lake (Adams).  We found a few Lapland Longspurs both in Adams and Weld Counties (look for flocks of Horned Larks).

Our best stop was in response to Bill Kaempfer's report of a Rusty Blackbird at Box Elder Creek and Weld County Road 4.  Within ten minutes of getting out of the car, three Rusty Blackbirds popped up from the Creek (at 20 feet north of County Road 4).

The Rusty Blackbirds would rest in the leafless cottonwoods for 5 minutes or so and then return to the Creek.  We watched this three times!

The next 30 minutes were spent trying to find out who owned the property.  We hoped to walk along Box Elder Creek and get better photographs.  We only managed a couple of witness shots.  Unfortunately, the landowner was not found.

A nice consolation was a local rancher took us to his property and showed us a Barn Owl in one of his abandoned barns (Weld County).

We ended our day at Banner Lakes Wildlife Area (Weld).  Two Long-eared Owls were relocated in the windbreak along the west side of Ponds 6-8.  A Great Horned Owl was also observed.  He called as we departed!

The day added some nice birds to our new 2017 Bird Lists!

First Trip to Aurora Reservoir 2017

January 2, 2017

Richard Stevens:

Temperature reached 50 degrees today.  With winds 12+ mph, it felt cold as I walked to Aurora Reservoir from the southeastern entrance.  Today was a repeat of the birds I observed on December 27.

Both Senac and Lone Tree Coves were almost completely ice covered.  Two adult Thayer's Gulls were on the ice at Senac Cove.  Most of the uncommon gulls were deep in Lone Tree Cove.

At the southern end of Lone Tree Cove, I counted three Thayer's Gulls, three Lesser Black-backed Gulls, the Great Black-backed Gull and the Mew Gull.

When I scoped the lake from the bench at mile 2.5, I added a Glaucous Gull, Long-tailed Duck, Common Loon and two White-winged Scoters. 

On 12/27, I had the impression that two Glaucous Gulls might be out there.  Another birder did report two on 12/31.  Today I only found one.

The southern gates now close at 5:30 pm.  Northern entrance is open until 6:00 pm!

Eastern Colorado & Christmas Counts

December 28, 2016 to January 1, 2017

Terry Michaels.................

Richard Stevens has been waiting for me to compile our recent Christmas Counts and trips.  Full lists in January 2017 "Colorado Field Notes"

December 28

Five of us headed to Cottonwood Canyon in Baca County for tomorrow's Christmas Count.  Our route was I70 to Hwy 71 south to Hwy 50 to Lamar, then south to Springfield.

Stops: Lamar Community College in Prowers County
We found a pair of Northern Cardinals at the southern end of the college woods.  A male Red-bellied Woodpecker was at the northern end.

Two Buttes Reservoir in Baca County
We wondered if the report of ten Winter Wrens was a topo.  We did find one Winter Wren below the dam.  A Barn Owl was well hidden in the red rocky cliffs.

December 29

The five of six feeder watchers and us conducted the thirteenth Cottonwood Canyon Christmas Count.

We ended up with 61 species: highlights
Greater Roadrunner (6)
Western Screech-Owl (6)
Long-eared Owl (1)
Short-eared Owl (1)
Northern Saw-whet Owl (2, separate locations)
Lewis's Woodpecker (2, private land)
Steller's Jay (1, unusual location)
Juniper Titmouse (2)
Rock Wren (1, late in year)
Rufous-crowned Sparrow (8, always nice to find here)

December 30

We left Cottonwood Canyon area early and stopped at the Upland Bird Management Area.  A Short-eared Owl flew around east of the parking lot 30 minutes before sunrise.

At Picture Canyon, we walked south to Oklahoma.  Highlights
Northern Mockingbird (40 yards north of Oklahoma)
Rufous-crowned Sparrow (2, just south of parking lot)
Curve-billed Thrasher (1, hillside near gated cave)

We drove the gravel and dirt track just east of the entrance to the old Campo Prairie Chicken lek.  Scoping the hills at 0.3 miles south of Baca county road G, one Lesser Prairie-Chicken was seen walking around!

A stop at Two Buttes Reservoir did not find any Winter Wrens today.  The Barn Owl was still in his cubby hole.  A Greater Roadrunner was above the dam.  We looked in the evergreens for owls.  None were found but a Pine Warbler was a great consolation!

Then the long drive to Burlington, nothing at Lake Sheridan

December 31

We relocated the Greater Prairie-Chickens reported yesterday by Rebecca Laroche south of Yuma County Roads 59 & PP.5!

Five of four feeder watchers and us conducted the CoBus thirteenth Christmas Count.  We ended with 81 species.  Highlights

Greater Prairie-Chicken
Varied Thrush
Northern Cardinal
Eastern Screech-Owl (5)
Northern Saw-whet Owl (private land)
Red-bellied Woodpecker (4, Bonny/Hale, 1 CR 2)
Winter Wren (1, Hale ponds)
Eastern Bluebird (2)
Fox Sparrow (red form, private land)
Harris's Sparrow (2, Hale ponds & CR 2)
Rusty Blackbird (1, private land)
Red Crossbill (2, private land)

On the trip to Wray we stopped at Beecher Island; one White-throated Sparrow

January 1

We drove Yuma county Road 45 an hour before sunrise.  A Short-eared Owl was near CR PP.  A Greater Prairie-Chicken was seen near the CR 45 lek.

Wray Fishing Unit in Yuma County
Northern Cardinal
Barn Owl
Eastern Bluebird
White-throated Sparrow

Thinking about our 2017 list we went back to Bonny Reservoir/Hale; highlights
Varied Thrush (south side of Bonny Reservoir)
Northern Cardinal (wagon wheel)
Eastern Screech-Owl (hale ponds)
Eastern Bluebird (hale)
Red-bellied Woodpecker (2, hale ponds)

Missed Yellow-bellied Sapsucker again that was reported by Loch Kilpatrick below the Bonny Reservoir dam on 12/30.

Nothing rare at Flagler Reservoir in Kit Carson County