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Bat Flight History

Flight Prediction Archive

Every evening's bat flight prediction at Congress Avenue Bridge, documented by Austin Bat Refuge staff.

All Posts

Tonight's Prediction →
Monday, August 11, 2025
Sunday August 10, 2025
Outflow boundaries heading W from isolated storms over Burleson County […]
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Monday, August 11, 2025
Wednesday August 13, 2025
8:15 pm – 8:45 pm  when conditions allow, i.e. when the atmosphere is stable, no pressure drops, no strong…
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Monday, August 11, 2025
Sunday August 10, 2025
Flight: 8:28 pm -11 minutes after sunset (well before dark) ~47% of the colony flew – most went…
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Sunday, August 10, 2025
Saturday August 9, 2025
Outflow boundary from storms over EagleLake and Yoakum stir up […]
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Sunday, August 10, 2025
Saturday August 9, 2025
Flight: 8:28 pm -10 minutes after sunset (well before dark) ~46% of the colony flew – most went…
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Saturday, August 9, 2025
Friday August 8, 2025
Frio 0:50, Bracken 0:52, Chiroptorium 0:58, OldTunnel SanPedro SALutheran 1:20, […]
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Saturday, August 9, 2025
Friday August 8, 2025
Flight: 8:32 pm Scouts: 8:24 pm -15 minutes after sunset (just before dark with the hazy sky) ~25%…
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Friday, August 8, 2025
Thursday August 7, 2025
Frio 0:48, Chiroptorium Bracken 1:04, OldTunnel McNeil SALutheran 1:22, SCUCISD […]
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Friday, August 8, 2025
Sunday August 10, 2025
8:20 pm – 8:50 pm  when conditions allow, i.e. when the atmosphere is stable, no pressure drops, no strong…
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Friday, August 8, 2025
Thursday August 7, 2025
Flight: 8:36 pm -15 minutes after sunset (just before dark with the hazy sky) ~24% of the colony…
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