Distribution of Ground-Nesting Marine Birds Along Shorelines in Glacier Bay, Southeastern Alaska: An Assessment Related to Potential Disturbance by  Back-Country Users

Scientific Investigations Report 2007–5278

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5278

Table 3. Nests and territorial pair counts at areas of concern, Glacier Bay, Alaska, 2003–05.

[Nests: Number of active nests. Pairs: Number of territorial pairs. Adult counts: Number of adults observed at the site during the survey with the highest number of nests. Note: Because of interannual variation at sites and the need to assess potential risk to nesting birds, all counts reflect data from the survey with the highest nest counts for all years of the study]

Location	Latitude	Longitude	Visitor use	Date	Arctic Tern			Aleutian Tern			Black Oystercatcher			Mew Gull
Location	Latitude	Longitude	Visitor use	Date	Nests	Pairs	Adult counts	Nests	Pairs	Adult counts	Nests	Pairs	Adult counts	Nests	Pairs	Adult counts
Sealers Island	58.95979	-136.12680	High	5-29-2005	46	0	75	0	0	0	4	0	7	1	1	3
McBride Inlet, north spit	59.03528	-136.14452	High	6-26-2005	8	0	29	0	0	0	2	0	8	0	0	6
Reid Inlet, west entrance	58.86523	-136.81927	High	5-27-2004	9	0	20	0	0	0	4	3	11	0	0	22
Muir Inlet, north shore	59.06913	-136.29306	Low	5-29-2004	2	0	2	0	0	0	6	11	42	12	6	45
Adams Glacier outwash	58.87129	-135.89135	Low	6-14-2005	41	3	357	4	1	37	3	0	10	1	1	37
Grand Pacific moraine	59.06083	-137.04116	Low	6-13-2005	64	0	200	0	0	0	0	0	0	3	1	11
Islet northwest of Eider Island	58.52163	-135.95215	Low	6-20-2005	15	0	0	0	0	0	15	0	(¹)	0	0	0
Islet at Scidmore Bay	58.75828	-136.53234	Low	6-30-2004	18	0	(²)	0	0	0	1	0	(²)	4	0	(²)
Islet at Tlingit Point	58.75095	-136.17675	Low	6-18-2005	25	0	60	0	0	0	3	1	17	4	0	2

Location	Visitor use	Date	Glaucous-winged Gull			Herring Gull			Semipalmated Plover			Red-throated Loon			Parasitic Jaeger
Location	Visitor use	Date	Nests	Pairs	Adult counts	Nests	Pairs	Adult counts	Nests	Pairs	Adult counts	Nests	Pairs	Adult counts	Nests	Pairs	Adult counts
Sealers Island	High	5-29-2005	1	0	1	0	0	0	0	0	0	0	0	0	0	0	0
McBride Inlet, north spit	High	6-26-2005	0	0	0	0	0	0	2	0	22	0	0	0	0	0	0
Reid Inlet, west entrance	High	5-27-2004	0	0	0	0	0	0	3	0	5	0	0	0	0	0	0
Muir Inlet, north shore	Low	5-29-2004	31	1	77	17	2	50	1	0	6	0	0	2	(³)	0	(³)
Adams Glacier outwash	Low	6-14-2005	0	0	0	0	0	0	4	1	65	0	0	0	1	0	5
Grand Pacific moraine	Low	6-13-2005	0	0	0	0	0	0	(³)	0	(³)	0	0	0	0	0	2
Islet northwest of Eider Island	Low	6-20-2005	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0
Islet at Scidmore Bay	Low	6-30-2004	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Islet at Tlingit Point	Low	6-18-2005	4	0	28	0	0	4	0	0	0	0	0	0	0	0	0

¹Count occurred over the course of the summer and included Alaska Department of Fish and Game data (unpub. data, 2005).

²Adults were not enumerated.

³Adults or nests may have been present.

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