Beaumont Enterprist: Like the canary to the coal miner, the purple finch might be a warning sign of climate changes to come in Southeast Texas. Once a common winter sight, spotting a purple finch now is a rarity, according to John Whittle with the Golden Triangle Audubon Society. Whittle said in the 25 years he has lived in Southeast Texas, he has noticed considerable migratory shifts amongst bird species. Throughout the years, the purple finch followed their preferred climate north and …