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Checklist S17981600

 
Location
Butterbredt Spring, Kern County, California, US ( Map ) ( Hotspot )
Date and Effort
Sun Apr 20, 2014 6:23 AM
Protocol:
Traveling
Party Size:
2
Duration:
4 hour(s), 6 minute(s)
Distance:
0.9 mile(s)
Observers:
Thomas Wurster
Comments:
With Liga Auzins. 51 F at dawn. Typical down canyon wind overnight, continued thru most of morning but diminished to a gentle waft at finish. Clear. Coverage: spring, immediate area around parking zone; last was a walk down canyon and return. Dawn migrant "flight parade" (6:30 to about 7:15) totaled over 200 individuals before tapering off: mostly small warbler sized but with occasional groups of larger tanager sized birds.
Submitted from BirdLog NA for iOS, version 1.7.1
Species
48 species (+6 other taxa) total
2

down canyon - quee-ark calls followed by brief in-flight view as they spooked in front of us

10
60

Groups of 2-6 flying up and down canyon throughout

5
4

Resident pair - both pale chested lacking belly band. Two migrants both immature

1

Calling at night' spooked from day perch below overlook

4
1
1
falcon sp.

Large falcon (Peregrine/Prairie size) observed streaking down canyon - upperparts appeared sandy brown as in Prairie Falcon

1

call only

2

tiny bills , long primary projection, contrast between head body, heavily gray vested, silent.,

1

whit calls and dwnward tail jerk

1

silent, very short primary projection, ill a tad longer and thicker than Hammond's, entirely orange beneath, plumage colors muted with less contrast than in HAFL, Always a challenging ID - so studied at length

2
Pacific-slope/Cordilleran Flycatcher (Western Flycatcher)

silent

2

calling - dawn song - continued very vocal throughout morning.

1

Liga only

1
2

both moderately well marked individuals.

2
1
3
swallow sp.
6
8
3
1
4
1
3
1

Male

75
5
20
2

silent; uniform slate gray upperparts much darker than clear gray of southern Thick-billed populations; slightly enlarged lower mandible may be too big for Interior Slate-colored populations?? so perhaps this is a northern Thick-billed such as fulva which is said to be darker than southern Thick-billed????

1
1

possibly an altivagens, - bright rufous streaking on underparts, also bright rufous on wings and tail; weak singing - more jumbled notes lacking strong introductory notes of Thick-billed; call was a "smack-like" note that was unlike smack of Sooty group.- more like Slate-colored to my ear?????

5
50
1

White striped adult with bright yellow lore spot and neat white throat continues (present April -9 fife Stan Gray)

1

heard only - singing down canyon from oasis

1
2
4
2
2
1
7

the few seen well were lutescens=likel

2
25
2
5
8
4
3
200
passerine sp.

dawn parade: migrants flying up-canyon in low pre-sunrise light - most were warbler sized but included a few larger tanager and grosbeak sized migrants.

 

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

Yes