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Checklist S37859742

 
Location
Gulf of Nicoya (Puntarenas/Paquera ferry), Puntarenas, CR ( Map ) ( Hotspot )
Date and Effort
Wed Jun 28, 2017 7:30 AM
Protocol:
Traveling
Party Size:
6
Duration:
5 hour(s)
Distance:
24.0 kilometer(s)
Observers:
10,000 Birds Collaborative , Pat O'Donnell List
Comments:
clear skies, not too much activity but probably more activity in gulf before ferry left
Species
21 species (+1 other taxa) total
2
1

Seen on 11 am boat from Paquera to Puntarenas about an hour into the trip. Appeared suddenly close to the boat, under our noses while we watched a distant Blue-footed Booby. Was seen perched on driftwood before it flew directly away and south. Bird appeared to be a dark juvenile- when seen on log, its proportions and largish head made me think of a gull until it slowly dawned on me that no, there weren't any dark brown gulls around here and that it was actually a jaeger. Bird looked rather uniform dark brown, when it took off, I noticed contrasting pale uppertail coverts, rather short tail, pale primary shafts on upper wing, and prominent flash on underside of primaries. The main reason why I believe it was a Pomarine, though, is because it was bulky, around the same size as a gull, and when it flew away, had broad wings with lazy, powerful flaps. This was very much unlike a Parasitic Jaeger we had seen earlier that day.

1

Seen in distance from ferry while we were docked in Puntarenas. First noticed flying fast and falcon-like over the water then chased a tern species. Based on the slim falcon like shape and smallish head, I identified it as a Parasitic- too slim and smallish to be a Pomarine, but not dainty enough to be a Long-tailed. Details were tough to note other than it may have been molting into adult or breeding plumage (?). It showed white flashes above and on underside of primaries, had pale on belly and may have had a breast band.

1
20
6
12
1
1
storm-petrel sp.

one very distant with a few Black Terns

8
3

Distant but appeared to be juveniles (had dark heads, white in tail and on back noted), pale belly.

2
6
45
8
4

including one foraging on pile of driftwood out in gulf

1
1
22
14
4
6
 

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

Yes