4 letter codes

Open the latest AOU standard code list: AOU web page

Choose:

Alpha codes in taxonomic order - to see birds grouped by family-genus

Alpha codes in alphabetically by english name - to see birds from a to z by name

Use the search function in your PDF viewer

to find the common or scientific name of the

bird you seek.

meaning of symbols within PDF file:

“+” before English name indicates a non-species taxon

* Four-letter and six-letter codes that, because of conflicts, are not "1st-order" codes are marked with asterisks.