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Checklist S36000983

 
Location
Butterbredt Spring, Kern County, California, US ( Map ) ( Hotspot )
Date and Effort
Sat Apr 15, 2017 6:15 PM
Protocol:
Traveling
Party Size:
2
Duration:
5 hour(s), 30 minute(s)
Distance:
1.0 mile(s)
Observers:
Thomas Wurster
Comments:
Tom Wurster and Liga Auzins Wurster. 44 - 67 F, clear, variable cold breeze blowing down canyon 2-10 mph; near calm in wind protected zone immediately below cottonwood grove. By 7:45 wind dropped to 1-2 mph throughout. 20 minutes burst of migrants starting 7:00 AM, otherwise just a trickle of migrants. Cottonwoods & tree of heaven leafed out; air filled with cottonwood "lint". Coverage: spring area, parking area including tree of heaven grove and peach thorn flats; leisurely late morning walk down canyon about 1/2 mile and return. Venus, a very thin crescent in binocs, shined like a beacon at dawn, low in the east.
Submitted from eBird for iOS, version 1.4.114
Species
49 species (+2 other taxa) total
0

heard only - a distant quee-ark call, that is probably correctly ID'd but, ......

7
4
10
2
6
Age & Sex
Juvenile Immature Adult Age Unknown
Male 2 3
Female 1
Sex Unknown
1
1

Male

1

This is the earliest spring date listed in ebird for the eastern Kern desert region. Earliest date in Matt Heindel's manuscript is 21 April.Our FOS. Calling "quick 3 beers" and flycatching from tops of trees of heaven. Kingbird size flycatcher, large "triangular" head; dark brown olive above, white thru midline of underparts, sides densely streaked olive; very long wing projection.

7
3

2 w/ typically longish billed with dark tip to lower mandible and classic tail drop action; However, the bird photographed gave me fits - the bill doesn't look long enough in photo (but visually appeared longer in other poses), and I can only see a hint of its yellowish base, and bill appears characteristically "thinner/flatter" rather than thicker/rounded as in Dusky). In the end,its repeated downward tail drop action outweighed my doubts.

© Thomas Wurster

Repeatedly dropped tail down, then up. Loud whit call note

1

Whit call eliminates Hammond's; repeated upward tail flicks eliminate Gray. Body proportions and color very similar to Gray, but colors more clouded (duskier, not cleaner gray); bill shorter (and thicker?) than Gray.

© Thomas Wurster

repeated whit call note

© Thomas Wurster

tail motion was an upward flick

3
4
Empidonax sp.

Troublesome whiting empids: Dusky or Gray that needed more study to ID

4
5
1
2

Adult w/ begging fledgling

2
1
swallow sp.
5
6
5
2
18
10

All similar w/ paler gray-brown back and high contrast rusty tail

10
1

At water trough

8

Copulating pair

1

Heard only TiVo calls

3

Singing

1

Sooty/slate-colored: obstructed view while it was buried in deep shade

60
3
1

Heard only: singing down canyon, expected jerky phrased song

4
3
1
1

ASY male

1

Heard only: Singing from Joshua trees up canyon direction from parking area

1

Female

1
3
2

Our FOS

1

Male. Our FOS

3
18
5
3
45

By far the most abundant warbler. Counted 5+ in a single tree on several occasions.

2
2

Both males

 

Are you submitting a complete checklist of the birds you were able to identify?

Yes