where the term pefa comes from


The Institute for Bird Populations: English & Scientific Alpha Codes for North American Birds through the 52nd AOU Supplement 2011


One thought on “where the term pefa comes from

  1. I have a file in PDF of all those odes, Anna, if someone wants them. I also have a link to them on the Peregrine Blog. Am working to find someone who has them on Android. IPhone already has them. Cheers.

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