Alaska Species Ranking System

Tree Swallow (Tachycineta bicolor)

Tree swallows huddle for warmth on a crowded branch in a snowstorm.
Credit: Tree swallows huddle for warmth on a crowded branch in a snowstorm, Keith Williams, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0.

Score Summary

Conservation Rank: IV. Yellow (High Status and Low Biological Vulnerability)

Total Status score: 2 (range: -20 to 20)

Total Biological score: 10 (range: -50 to 50)

Explore Assessment

Status Biological Supplemental

Status

Population trend

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas sollicitudin iaculis viverra. Curabitur quis fringilla quam, sed suscipit enim. Morbi vulputate, magna a elementum tristique, velit sapien iaculis nisi, non pellentesque augue nibh a sem. Mauris hendrerit libero eu mi tempus, at commodo dolor auctor. Suspendisse potenti. Etiam id purus.

Population trend score: 5

Distribution trend

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque eu.

Population trend score: 5

Biological Vulnerability

Population size

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas sollicitudin iaculis viverra. Curabitur quis fringilla quam, sed suscipit enim. Morbi vulputate, magna a elementum tristique, velit sapien iaculis nisi, non pellentesque augue nibh a sem. Mauris hendrerit libero eu mi tempus, at commodo dolor auctor. Suspendisse potenti. Etiam id purus.

Population size score: 5

Supplemental

Action Need

Supplemental Variables

Taxonomic Notes

Lorem ipsum dolor sit amet, consectetur adipiscing elit.

Review Information

Agency Ranks

Literatured Cited