Birds of North Carolina:
their Distribution and Abundance
Brown Booby - Sula leucogaster
SULIDAE Members:
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General Comments The Brown Booby is a rarer bird off our coast than is the Masked Booby, even though both species breed in good numbers in the West Indies. For whatever reason, the Brown Booby is not as prone to wander northward to the mid-Atlantic coast; and it was an embarrassingly late entry onto the North Carolina bird list, not having been recorded until 1979. As of 2017, there are now close to 40 state records, with an average of nearly one record a year in our waters. Thus, it is even a more red-letter find than is the Masked Booby. As with that species, a handful of reports have come from shore; quite shocking was one that was not only found well inland, but lingered at that site for many months. A few reports of Brown Boobies possibly refer to mis-identified immature Northern Gannets.
Breeding Status Nonbreeder
NC BRC List Definitive
State Status
U.S. Status
State Rank SZ
Global Rank G5
Coastal Plain Nonbreeding visitor, mainly offshore in the Gulf Stream, but there are quite a few records from shore, including birds perched on land or on markers/buoys. Very rare to now rare (and slightly increasing) from late May to late Aug; casual to mid-Apr and to mid-Sep. No conclusive records from Oct to early Apr. There is a recent report of a sub-adult at Beaufort Inlet(Carteret), 18 Dec 2016; however, the report has not yet been reviewed by the NC BRC, and a few previous winter season reports of boobies (Brown and/or Masked) have not been accepted due to confusion with the abundant-in-winter Northern Gannet. Peak counts: one; all roughly 35 records refer to single individuals only. Coastal records are for Dare, Hyde, Carteret, Onslow, New Hanover, and Brunswick. No far inland records.
Piedmont Accidental, with two records. An adult female was seen and photographed on many dates at Lookout Shoals Lake (Catawba and Iredell) from 28 May - 5 Dec 2016* [Chat 80:108-109 link] [Chat 80:142 link]. A second adult, determined to be a different individual by photo examination, was photographed at Lake Tillery (Stanly) on 20 Aug 2016. The latter report has not yet been reviewed by the NC BRC.
Mountains No records.
Finding Tips As with other rare pelagic species, you will have to take dozens of trips out of Oregon Inlet or Hatteras Inlet to see one, unless you are very lucky. On rare occasions a Brown Booby is seen along the coastline, such as on a jetty or perched on a channel marker/buoy.
*
Attribution LeGrand[2018-02-20], LeGrand[2018-02-01], LeGrand[2017-12-08]
NC Map
Map depicts all counties with a report (transient or resident) for the species.
Click on county for list of all known species.
NA Maps
(source NatureServe)

View NatureServe distribution maps for Sula leucogaster