ABA, AOS, Clements and IOC v11.2 2021 Taxonomic Lists are Now Available!

The latest updates to your favorite Bird Taxonomic Lists are Now Available!

• ABA July 2021
• IOC v11.2 2021
• AOS July 2021
• Clements 2021

Downloading, Importing and Reconciling new species, splits and lumps is a breeze.

Purchase your taxonomic lists from the Online Store page.

Download the installers from the Taxonomy Downloads page.

If you own the new Annual Everything License, skip the purchase process and go straight to the Downloads page. No installation password is required!

I hope you enjoy the updated lists.

Jeff