“GWFG and SNGO at Pymatuning, Crawford county“ That’s a bird report headline from PABIRDS, February 7, 2016.  If you’re not familiar with 4-letter bird codes it’s a meaningless message and you wouldn’t know these may be Life Birds.  (Fortunately the names are inside the report.) Few birds have short names so abbreviations come in handy … Continue reading Four-Letter Bird Codes: What and How