Tachycineta bicolor tree swallows many on wire 2016 10-20 Delta -b- 001

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Tachycineta bicolor tree swallows many on wire 2016 10-20 Delta -b- 002

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Tachycineta bicolor tree swallows many on wire 2016 10-20 Delta -b- 003

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Tachycineta bicolor tree swallows many on wire 2016 10-20 Delta -b- 004

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Tachycineta bicolor tree swallows many on wire 2016 10-20 Delta -b- 005

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