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Totals
Observations
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Number observed: 2
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Number observed: 415
Details
15, 400
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Number observed: 1
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Number observed: 3
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Number observed: 2
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Number observed: 19
Details
15, 2, 2
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Number observed: 2
Details
Males displaying
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Number observed: 15
Details
in "scape", mid E side
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Number observed: 3
Details
ads seen in gull flights overhead.
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Number observed: 50
Details
Estimated number for birds looking "good" for this sp., based on looking through 100s of individual birds in a series of photos of flocks passing overhead. Photo a sample from a series of photos, several showing around 100 birds (too large to upload in uncropped state).
Media
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Western x Glaucous-winged Gull (hybrid)
Number observed: 350Details
Presumed to be this prevalent hybrid combination. Large, heavy-bodied and heavy-billed gulls with more or less uniform pale (not black) pp going over in low elevation flocks (often thermalling) to ENE in 5 groups, starting 2pm (from landfill to W). Flocks seemed pretty uniform -ad. HEGUs could be picked out easily.
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Number observed: 2
Details
ad and imm
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Number observed: 2
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Number observed: 2
Details
imms.
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Number observed: 5
Details
4ads., 1 imm
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Number observed: 3
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Number observed: 1
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Number observed: 9
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Number observed: 1
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Number observed: 1
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Number observed: 6
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Number observed: 54
Details
4, 50 (late over to W)
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Number observed: 8
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Number observed: 27
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Number observed: 54
Details
3,26,10,15
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Number observed: 8
Details
2, singles (mainly heard)
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Number observed: 12
Details
all singles
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Number observed: 2
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Number observed: 1
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Number observed: 4
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Number observed: 3
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Number observed: 2
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Number observed: 12
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Number observed: 650
Details
overhead in one event, generally from landfill to composting facility to E
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Number observed: 1
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Number observed: 12
Details
2 twos and singles
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Number observed: 3
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Number observed: 5
Media
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Number observed: 27
Details
generally 1s and 2s, but one group of 7 scratching together
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Number observed: 16
Details
surprisingly few
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Number observed: 33
Details
1, 1, 6, 4, 4, 4, 5, 8
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Number observed: 41
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Number observed: 2
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Number observed: 50
Details
21 encounters involving 1-6 individuals. Clearly the most common sparrow, especially around fruit trees
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Number observed: 3
Details
w/a group of CACG tracking to E