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June 24 Through July 8, 1973 T- Submitted By: ... G. Vernon Byrd Acting Refuge Manager Aleutian Islands National Wildlife Refuge

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June 24 Through July 8, 1973 T- Submitted By: ... G. Vernon Byrd Acting Refuge Manager Aleutian Islands National Wildlife Refuge - --· --' - ~' '' ...; •·---· -:c--r:·roo- -.. I .'/)5J3 TRIP REPORT :PEDITION TO BOGOSLOF AIID AMAK ISLANDS, WITH NOTES ON OTHER EASTERN ALEUTIAN ISLANDS June 24 through July 8, 1973 t- Submitted by: . .. G. Vernon Byrd Acting Refuge Manager Aleutian Islands National Wildlife Refuge August 1973 FWLB 8796 .. -:1 . : -::r'!c>lj; TRIP REPORT :PEDITION TO BOGOSLOF AND A"1AK ISLANDS, WITH NOTES ON OTHER EASTERN ALEUTIAN ISLANDS June 24 through July 8, 1973 ~ Submitted by: >; ... G. Vernon Byrd Acting Refuge Manager Aleutian Islands National Wildlife Refuge August 1973 --, ~I ~I 81 . o I ~I ARLIS ~ Alaska Resources Library & Information Sen1cl AnclLr.:Ag;_' ,.;Jaska ' ''1· -1- TRIP REPORT EXPEDITION TO BOGOSLOF AND P.J~AK ISLANDS, WITH NOTES ON OTHER EASTERN ALEUTIAN ISLANDS ·:··'. June 24 through July 8, 1973 •, .'~ ' Introduction One of the programs of the Aleutian Islands National Wildlife Refuge is to locate and census colonial nesting seabirds and marine mammals on the refuge. From June 24 through July &t 1973 the refuge•s research vessel Aleutian Tern was used to conduct such a survey in the eastern Aleutian Islands. The main objectives of this expedition were to conduct detailed bio­ logical reconnaissances of Bogoslof and Amak Islands. At Bogoslof we employed several census methods (e.g. estimates and counts from the ship, counts from the beach, and counts from photographs) for cliff nesting birds. Kittiv1ake and cormorant nests were counted, but murres had to be dealt with in terms of the number of birds seen, since they do not build nests. Other species of birds nesting on Bogoslof were censused by actual counts or sample counts where possible. Steller•s sea lions were counted, and Bogoslof was floristically mapped. It was our intention to record data in such a way that subsequent investigators visiting Bogoslof could use the same methods \'/e employed and compare their data with ours to detect major changes in the status of Bogos1of•s flora and fauna. At Amak cliff nesting birds and marine mammals were counted from the ship. The relative abundance of bird species \'/aS determined by walking o\'er the AJFrrlltS Alaska Resources Library & Information SerVlce,:; Anc 1~ ~r-~{'... 1\ 1 k 14 '-" ""e:~. ·-~~as ,a -2- island. A skiff was used to count a segment of cliff for comparison with the count from the ship. The type of intensive census work done at Bogoslof \'las not conducted at Amak. Birds and marine mammals on Fire Island, near Bogoslof, and Sea Lion Rock, near Amak, were censused from the Aleutian Tern, and island cliffs were photographed. We noted birds and marine mammals in all the other areas visited during the expedition, but we spent little time ashore anyv1here except Unalaska and Port Moeller. This report includes most of the data we collected, but some of the information collected at Bogoslof is not included since analysis is not yet complete. The :Bogoslof data \'lill be analysed and readied for pub- lication in a scientific journal. Expedition Members (All Bureau of Sport Fisheries and Wildlife personnel) George Putney Master-Engineer, Aleutian Tern Kristian Anderson CooK-Deckhand, Aleutian Tern *Gordon Hatson Area Director, Alaska Area *Edgar Bailey Assistant Refuge l4anager, Iiembek NWR George Di voky Wildife Biologist Vernon Byrd Acting Refuge Manager, A1 eutian Is 1 ands N'..JR * Aboard June 24 through July 2 Itinerary (all times Alaska Daylight Savings time) June 24 0600 Depart Cold Bay on M/V Aleutian Tern 0800 ·Arrive King Cove (for fresh \'t'atery­ 0930 Depart King Cove Proceed across mouth of Cold Bay -3- / 1100 Arrive Amagat Island (census birds) Proceed past Cape Pankof to Bird Island (census birds and marine mammals) 1650 Arrive Rock Island (census birds and marine marrunals) 2061 Anchor near Cape Lutke, Unimak Island June 25 0800 Depart Cape Lutke Proceed across Unimak Pass (observe birds) 1100 Arrive Ugamak Island (survey fauna on south side) 1200 Arrive Kaligagan Island (census birds and marine mammals) 1300 Arrive Tigalda Island (survey fauna on south side)·· 1400 Arrive Derbin Island (census birds and marine mammals) 1700 Arrive Baby Islands (census birds and marine mammals) 2100 Arrive Unalaska, Unalaska Island June 26 1420 Depart Unalaska 2000 Start transect 10 miles southeast of Bogoslof Island 2100 End transect .25 mile off southwest end of Bogo~lof 2200 Anchor near Bogoslof June 27 0500 Depart Bogoslof (due to strong wind) 1100 Anchor Chernofski Harbor, Unalaska June 28 1000 Depart Chernofski Harbor 1247 Start transect 14 miles south of Bogoslof 1405 End transect 1 mile of southwest end of Bogoslof 1430 Start census of cliff nesting birds at Bogoslof 1715 End census of cliff nesting birds 2000 Went ashore Bogoslof, set up camp June 29-30 Census birds and marine mammals on Bogoslof from on shore July 1 1200 Leave shore camp site, board Aleutian Tern, Bogoslof 1400 Start census of birds and marine mammals Fire Island 1500 End census of Fire Island 1530 Start transect 1 mile north of Fire Island 1612 End transect 8 miles north of Fire Island 1630 Start transect 3 miles southeast of tenninatfon point of previous transect 1706 End transect 5 miles due east of Fire Island (length of transect 6 miles) . · · · 1740 Start transect 12 miles east northeast of Bogoslof 1840 End transect 10 miles later on northeast course 2300 Arrive Unalaska, Unalaska Island -4- July 2 In port Unalaska. Conduct brief biological reconnaissance of southern 195 acres of .hrnaknak Island (this is refuge area) July 3 1130 Depart Unalaska on M/V Aleutian Tern 1430-1530 Census birds and marine mammals on north side and east of Unalga Island 1530-1550 Count Hhiskered Auklets in Baby Pass 1550-1610 Observe birds in Baby Islands 1900-2100 Observe birds from Basalt Rock (north of Avatanak Island) to Ti~alda Bay, Tigal~a Island 2100 Anchor Tigalda Bay 2200-2330. Observe birds on shore at head of Tigalda Bay 2330 Back aboard Aleutian Tern July 4 0730 Depart Tigalda Bay 0910 Start transect 5 miles of Sennet Pt., Unimak Island 1030 End transect near Cape Sa.ri chef, Unimak 1030-1850 Observe birds and marine mammals along the north side of Unimak Island 1850 Start transect 10 miles west of Amak Island 1940 End transect 1 mile west of Amak 2000-2100 Census birds and marine mammals on Amak from M/V Aleutian Tern 2130 . Anchor near Amak July 5 0930 Go ashore Amak 0930-1400 Observe birds and mammals on shore Amak 1600-1930 Census birds on cliff (Seg. l) of Amak from skiff 1930 Back aboard 11/V Aleutian Tern July 6 0930 ·Depart Amak anchorage . 0930-1010. Observe birds around Amak 1010-1030 Census birds and marine mammals on Sea Lion Rock 1040 ·start transect 1 mile east northeast of Sea Lion Rock 1132 End trans~ct 10 miles east northeast of Sea Lion Rock (course 045° M) 1132-2130 Observe birds north of Alaska Peninsula 2130 Anchor Port t~oe ller · July 7-8 Anchored Port Hoe ller. Ashore each day for several hours observing birds near beach. ·· July 9 1330 Depart Port Moeller aboard J{eeve Aleutian Ainvays 1530 Arrive Co 1d Bay ., -5- Bird and Mammal Observations~ Date and Location June 24 Across mouth of Cold ~ Glaucous-winged Gull - A few scattered birds were seen. Hew Gull - Several were noted Black-legged Kittiwake - Less than 10 birds were observed. Pigeon Guillemot - Only a few \'/ere present. Parakeet Auklet - A single bird was tallied. Horned Puffin - A few were scattered across the area. Amagat Island (only looked along south side) least Auklet - Eight were seen near the island. ·Puffins- l4e estimated 5000 birds; most were Tufted. LeRoy So\'tl, Ed Bailey, and George Divoky estimated 150,000 puffins (both species apparently present in nearly equal numbers) about a week earlier at this island. They visited the island at 1900; we were there at 1100. Cape Pankof, Unimak Island Red-faced Cormorant- A small colony, 15-20 pairs, were seen. Glaucous-\vinged Gull - An estimate of 1500 \'tas recorded. Black-legged Kitti\•lake -An estimated.SOOO birds were seen near the · Cape, but no nesting cliffs were identified. Pigeon Guillemot - A few were seen. Puffins -Both species \vere present; neither in large numbers. Bird Is 1and Red-faced Cormorant- About 30 pairs nested on the island•s east end, and fe\·ler than 10 pairs used the \vest end. Bald Eagle - A nest, with an adult present, was observed on the island's southeast tip. Glaucous-winged Gull - An estimated 5000-6000 bi_rds used the island's east end, and 1500 were estimated for the west end. Black-legged Kittiwake - A total of 400-500 was seen on the east end of the island. · Cotmnon ~1urre - f·1urres were nesting on both ends of the island. All positively identified were of this species. An estimated 3000- 5000 birds ivere seen on the east end, and 10,000-12,000 nested on the \<Jest end. Pigeon Guillemot -A total.of 10-15 birds was present on the west side· of the island. Horned Puffin- App'roximately 50 were seen on the island's east end; only a fe\v \vere seen on the west side. Tufted Puffiri - About 10 birds were observed on the east side and · not many more 6n the west side, but burrows covered the hills on the west end. Sea Otter - An estimated 40-50 animals swam near the east end of the island, and 11 were counted on the west side. I· -6- Steller's Sea Lion - Twenty sea lions were counted on the v1est side. Rock Island (small island west of Lazaref Reef, Unimak Island) Pelagic Cormorant- A single nest was observed in the othervtise totally Red-faced Cormorant colony.
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