7/20/08 ›
First Caspian tern fledgling observed at Crump Lake tern colony
7/20/08 ›
30 color-banded Caspian terns re-sighted at Crump Lake tern colony during nesting season; terns previously banded as either adults or chicks at East Sand Island (5), Crescent Island (18), Potholes Reservoir (4), Crump Lake (1), and in Nevada (2)
7/11/08 ›
Boat survey of Fern Ridge Lake tern island; 1 Caspian tern circling over island; 5 Caspian terns observed by USACE staff on eastern shore of Fern Ridge Lake; no evidence of Caspian tern nesting attempts on island
7/10/08 ›
First survey of Antelope Reservoir in southeastern Oregon near Jordan Valley, OR; 6 foraging Caspian terns observed on lake; no nesting terns observed
7/10/08 ›
First survey of Lower and Upper Cow Lakes (near Jordan Valley, OR); 2 loafing Caspian terns observed on small island in Lower Cow Lake; no nesting terns observed
7/9/08 ›
Site visit to Tule Lake NWR and Lower Klamath NWR by project, USACE, and USFWS staff; plans to restore tern nesting habitat in these two areas discussed as part of plan to manage Caspian terns in Columbia River estuary
7/8/08 ›
Site visit to Crump Lake Caspian tern colony by project and USACE staff
6/29/08 ›
Road survey of Goose Lake near Lakeview, OR; 65 loafing Caspian terns observed on lake; lake level had dropped since aerial survey on 11-12 June; island where terns were seen nesting no longer an island (connected to mainland); tern colony evidently failed
6/28/08 ›
Caspian tern colony on Crump Lake island reached peak size of 428 active tern nests following removal of a total of 10 gulls from the tern colony
6/26/08 ›
Boat survey of Fern Ridge Lake tern island; no Caspian terns observed; brown pelican observed on island, first record of species at Fern Ridge Lake or in Lane County
6/23/08 ›
Boat survey of Clear Lake Reservoir; 2 Caspian terns loafing on Bird Island in western arm of lake; 49 Caspian terns loafing on 3 unnamed islands in eastern arm of lake; no nesting terns observed
6/23/08 ›
3 Caspian terns foraging at Fern Ridge Lake seen by Wayne Morrow (ODFW)
6/22/08 ›
First survey of Surprise Valley in northeastern California; no Caspian terns observed
6/20/08 ›
New video surveillance system deployed at Fern Ridge Lake tern island; no Caspian tern nesting attempts detected
6/11/08, 6/12/08 ›
Aerial surveys conducted in south-central Oregon and northeastern California for Caspian tern colonies; nesting Caspian terns detected at three sites: Crump Lake, Clear Lake Reservoir (in northeastern California near Newell, CA; 124 adult Caspian terns), and Goose Lake (near Lakeview, OR; 397 adult Caspian terns)
6/11/08 ›
First Caspian tern chick observed on Crump Lake tern colony
6/1/08 ›
Crump Lake Caspian tern colony declined to 23 active nests due to gull nest predation
5/30/08, 5/31/08 ›
Gull control began at Crump Lake Caspian tern colony; 2 California gulls that had depredated Caspian tern nests were shot
5/29/08 ›
Depredation permits issued by USFWS and ODFW to remove gulls observed to prey on Caspian tern eggs at the Crump Lake tern colony
5/28/08 ›
Number of active Caspian tern nests on Crump Lake island declined 39% since 25 May due to intense California and ring-billed gull predation on tern eggs
5/26/08 ›
First boat survey of Tule Lake in northeastern California; 3 Caspian terns seen foraging on lake; no nesting terns observed
5/26/08 ›
First boat survey of Clear Lake, northeastern California near Newell, CA; 6 Caspian terns seen foraging on lake; no nesting terns observed
5/22/08 ›
First road survey of Goose Lake near Lakeview, OR; 30 Caspian terns seen foraging or loafing on or near lake; no nesting terns observed
5/22/08 ›
First survey of Big Sage Reservoir, northeastern California near Alturas, CA; 2 Caspian terns seen foraging on lake; no nesting terns observed
5/21/08 ›
First road-based survey of Warner Valley for Caspian terns; 43 terns on Anderson Lake; 54 terns loafing near Flagstaff Lake; no evidence of Caspian terns nesting in Warner Valley other than on Crump Lake island
5/13/08 ›
First Caspian tern egg observed on Crump Lake island; first tern egg laid ~ 12 May
5/5/08 ›
Field crew began monitoring Caspian tern colony on Crump Lake island
5/5/08 ›
First boat survey of Caspian tern island on Crump Lake; 33 adult Caspian terns on island; California gulls, ring-billed gulls, and double-crested cormorants also attempting to nest on island
4/17/08 ›
Observation blind constructed and Caspian tern decoys and audio playback systems deployed on Crump Lake tern island to attract Caspian terns to nest; 5 flying Caspian terns observed near tern island
4/8/08 ›
Video surveillance system deployed at Fern Ridge Lake tern island; system no longer in service by 26 April and removed on 7 May
3/25/08 ›
USACE completed construction of Caspian tern nesting island in Crump Lake (in Warner Valley near Adel, OR) as part of plan for Caspian tern management in the Columbia River estuary
3/25/08 ›
Caspian tern decoys and audio playback systems deployed on Fern Ridge Lake tern island to attract Caspian terns to nest
2/2/08 ›
USACE completed construction of Caspian tern nesting island in Fern Ridge Lake (in Willamette Valley near Eugene, OR) as part of plan for Caspian tern management in the Columbia River estuary
