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National Weather Service radar picks up huge bat colony in skies over Phoenix

National Weather Service radar picks up huge bat colony in skies over Phoenix

The official start of fall may be Tuesday, but forecasters in Arizona recently spotted a sight in the sky more fit for Halloween.

The National Weather Service (NWS) forecast office in Phoenix last Sunday spotted something strange over the city.

“What might be causing all the radar returns around Phoenix between 6-7 PM this evening?” the NWS tweeted. “Is it rain or something else? Any guesses?”

Many replied on Twitter, speculating the radar returns were bugs, birds, or even a gender reveal party.

The NWS later revealed that it was bats–and lots of them.

“Specifically they are probably thousands of Mexican free-tail bats that migrate here for the summer,” the NWS tweeted.

The radar echoes show the bats coming out of a cave, tunnel, or bridge and then dispersing throughout the area to find food.

Forecasters said they were able to differentiate between birds and bats on radar due to the pattern of movement and the timing.

“When similar patterns are seen early in the morning and over/near bodies of water, that’s more indicative of birds,” the forecast office said.

Arizona Game and Fish Department biologist Angie McIntire told KTVK-TV she was “really excited” by the radar because she thought it was a new bat colony she was previously unaware of.

“Mexican free-tail bats would probably be going to Mexico to spend the winter,” McIntire said. “Some of them stay over winter here in Phoenix.”

The beginning of fall, when cooler temperatures arrive, is when bats are likely to migrate.

About the author

Vicky Sequeira

Vicky Sequeira

With more than 6 years of experience working as a media professional, Vicky flaunts prowess in bringing the juicy tit-bits from the entertainment industry for the readers of News Brig.

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