Sooty Tern

Onychoprion fuscatus

ML97525181


©
James Bradley
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eBird Checklist S11593290
Guguan (CNMI)
Northern Islands, Northern Mariana Islands
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Latitude and Longitude 17.308, 145.8406 Map

Age
Unknown
Sex
Unknown
Behaviors
Breeding
Tags

Media notes

Observation details

The second most abundant seabird with adults present on the island equivalent to approximately 1500-2500 pairs. Heard frequently at night and observed in flocks of 100+ individuals foraging around the shorelines. No active breeding observed and only a single recently fledged juvenile along the shoreline. Birds gathered on the north shore rocks may have been prospecting but it is also possible breeding had culminated in the months prior to our arrival, with most juveniles having dispersed. Or, the single juvenile observed represents a recent mostly failed breeding season (perhaps the most likely scenario) or heavy depredation of young.

Technical Information

Model
DSC-W35
f-stop
f/5.2
Focal length
18.9 mm
Shutter speed
1/250 sec
ISO
100
Flash
Flash did not fire, auto
Original file size
3,030KB
Dimensions
3072 x 2304

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