Checklist S14241253

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Owner Marshall Iliff

Traveling
  • 1
  • 2 mi
Checklist Comments


Submitted from BirdLog NA for iOS, version 1.5.5

Observations

  1. Number observed: 4
  2. Number observed: 3
  3. Number observed: 1

    Details: SY; flew in high and circled lake; very likely another bird that arrived as a result of the storm fallout

  4. Number observed: 1

    Details: Adult; photos; iPhonescoped video; a clear Black Tern, which spent most of its time feeding low to water and never circled up as high as the Arctic, but instead fed lower to the water and was surprisingly hard to spot among the swallows in the overcast and drizzly weather. Always fed by dipping down to the water's surface; never dove. Body plumage wholly dark, undertail coverts contrastingly white, short gray tail strongly notched, and upperwings entirely grayish with white 'headlights' along the base of the leading edge of the wing. First eBird report for Berkshire County, although there are surely prior records. SLR photos:

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  5. Number observed: 1

    Details: Adult; photos; iPhonescoped video; a clear adult Arctic Tern, although views were always rather distant at 1/2 to 1/3 mile or more. First spotted dipping down to the water's surface as I viewed from the northwest causeway off Naragansett Street. I then dashed over to the causeway along the east side (Route 7), and viewed form there for 40 minutes or more, which allowed identifiable scope views but was still too distant for photography. First identifiable by shape, a rotund, round-chested and very long tailed tern with a long, flowing tail. The wings were very narrow with a particularly long and narrow hand, and it always appeared short-necked. This shape alone gave the bird a distinctive appearance, but its feeding behavior also seemed unlike Common Tern, and it always dipped down to pick at the water's surface rather and never once dove. Its flight was exceptionally buoyant, often rising and falling and being buffeted left and right by the wind, giving it a very mobile flight but also with lots of rise and fall in each individual stroke. It was very hard to get an accurate sense of underparts coloration, and I never could see the bill color, but the bird clearly had a full black cap. The upperwings were entirely even pale gray with no hint of darker featehring in the primaries from above as well as no hint of a paler flash on the inner primaries, eliminating both Common and Forster's; this is shown by the photos. In addition, the underwing was very clearly translucent through all the flight feathers, and this set of a very crisp and narrow black trailing edge to the primaries of the 'hand'; both of these characters are diagnostic for Arctic and eliminate other Sterna terns. Finally, the tail was very long with the outer streamers at least as long as the central rects, giving the tail a strongly U-shaped center with very long outer rects (well shown in the photos). The outer rects seemed to flow and undulate in the breeze, very like the tail of a Roseate (which was easily eliminated by the gray underparts contrasting with the undertail) and most unlike the more rigid tail streamers of common and Forster's. SLR photos:

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  6. Number observed: 2

    Details: adults in breeding plumage sitting on lake together

  7. Number observed: 10

    Details: all in one tight flock sitting on lake

  8. Number observed: 1
  9. Number observed: 40

    Details: Rough estimate

  10. Number observed: 40

    Details: Rough estimate

  11. Number observed: 125

    Details: Rough estimate; majority of swallows likely Barn

  12. Number observed: 6

    Details: probably many more

  13. swallow sp.

    Number observed: 600

    Details: Loads of swallows over lake in this weather

  14. Number observed: 2
  15. Number observed: 6
  16. Number observed: 1
  17. Number observed: 2
  18. Number observed: 1
  19. Number observed: 2
  20. Number observed: 1
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