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World’s oldest known wild bird is a mother again on Midway Atoll (496 words) biology ornithology 11 votes
Rare half-male, half-female cardinal spotted in Pennsylvania (629 words) biology genetics birds ornithology chimeras 16 votes
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Rare goose makes 6,000 mile trip from Russian Artic back to Arkansas (386 words) ornithology waterfowl migration 4 votes