Seabird Bobb Katt

Lover of all birds, but especially marine birds, and specifically seabirds, and maybe auks the most, with Kittlitz's murrelets best of the best.

[Seabird Bobb Katt @SeabirdK]

4/4 #WSTC8 #ToolSesh #Yearofterns Finalizing 2021 analysis &report; In 2022 address issues of colony accessibility (need helicopter) and estimate of detection probability before we scale up to a statewide effort in 2023. Please share any info you may have on tern colony locations

[Seabird Bobb Katt @SeabirdK]

3/4 #WSTC8 #ToolSesh We surveyed 2,293 of 3,786 cells (61%) in Stratum 1 and covered almost 2700km of coastline; estimated density of 23 Aleutian Terns per 100km; 10 of 49 colonies had Aleutian Terns; estimated 1,485 ALTEs. Statewide estimate was ~5,000 ALTEs (Renner et al. 2015)

[Seabird Bobb Katt @SeabirdK]

2/4 #WSTC8 #ToolSesh Goal: develop scalable colony (aerial) survey protocol. Objectives: estimating colony prevalence & tern abundance. Study design included Phase 1-with 2 Strata (coastal, 1 km inland; 1km x 1km grid) & Phase 2 ground counts at colonies located during Phase 1.

[Seabird Bobb Katt @SeabirdK]

1/4 #WSTC8 #ToolSesh #Yearofterns The Aleutian Tern (ALTE) is one of Alaska's most imperiled seabirds owing to population declines of >80% at known colonies in recent decades. In 2021, we tested a colony survey and monitoring framework in southwest Alaska.