Rank	Island Name	Species	Breeding Pairs	Ratio	Year	Contributor	Threats	Contributor
1	Salt Pond	Gull-billed Tern	14	0.056	1989	BUD	Rats	BUD
2	Sombrero	Brown Booby	386	0.055	2005	HDA	Invasives, Development	HDA
3	S/SW Pedro	Masked Booby	38	0.051	2005	ASU	Invasives, Humans	ASU
4	Dutchcap	Brown Pelican	100	0.042	1996	JPI	Rats	JPI
5	St. Giles	Audubon's Shearwater	100	0.037	2000	BNR	Invasives, Humans	BNR
6	Aves	Sooty Tern	10000	0.032	2005	LTO	Rats	LTO
7	Sombrero	Bridled Tern	270	0.030	2005	HDA	Invasives, Development	HDA
8	Martinique Mainland	Red-billed Tropicbird	50	0.029	1998	DSL	Invasives	DSL
9	Aves	Cayenne Tern	100	0.026	1999	BAS	Rats	BAS
10	Culebra (Flamenco)	Sooty Tern	8000	0.025	2005	JES	Rats	JES
11	Sevilla	Brown Pelican	60	0.025	1998	JRB	Invasives	JRB
12	San Lorenzo Bay	Magnificent Frigatebird	150	0.025	1962	DSL	Invasives	DSL
13	St. Giles	Red-footed Booby	402	0.024	2000	BNR	Invasives, Humans	BNR
14	Carmichael Pond	Gull-billed Tern	6	0.024	1989	BUD	Rats	BUD
15	Dutchcap	Brown Booby	150	0.021	1996	JPI	Rats	JPI
16	Carval Rock	Roseate Tern	77	0.021	1992	JPI	Rats	JPI
17	S/SW Pedro	Magnificent Frigatebird	115	0.019	2005	ASU	Invasives, Humans	ASU
18	Allan's	Audubon's Shearwater	50	0.019	2003	WAM	Mice	WAM
19	St. Giles	Magnificent Frigatebird	108	0.018	2000	BNR	Invasives, Humans	BNR
20	Kick-em-Jenny	Magnificent Frigatebird	100	0.016	1956	BON	Invasives?	BON
21	Anegada	Gull-billed Tern	4	0.016	2005	MGO	Invasives	MGO
22	Anegada	Sandwich Tern	25	0.016	2005	MGO	Invasives	MGO
23	S/SW Pedro	Brown Booby	100	0.014	2005	ASU	Invasives, Humans	ASU
24	Burma Quarry	Roseate Tern	50	0.014	1999	JES	Invasives	JES
25	Antigua	Roseate Tern	50	0.014	1984	VHN	Invasives	VHN