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California Quail
 

Connecting People With Nature

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Bats on Our Bridges!

BAT HOUSE BRACKETSBAT HOUSINGBAT HOUSE ON BRIDGE

Just when it seems that West Nile Virus has come to our county to stay, along comes a friendly, flying mammal that loves to eat mosquitos and an Eagle Scout candidate who is building and installing bat boxes to encourage their work. Just the kind of collaboration our Chapter encourages.

The new set of boxes have been built for two bridges along San Ramon Creek in Danville, as shown above, and "will help bats whose available living options are limited as our community continues to expand," says Michael Harris, a Boy Scout from Troop 815, who built them under the sponsorship of MDAS and Connecting People With Nature.

And it isn't just humans that West Nile threatens! Brian Murphy, our Volunteer Coordinator, found a dead Golden Eagle at Walker Canyon (see our Conservation Page for more details) which had been killed by the virus.

Bridges are the safest place to install bat housing as sick or dying bats fall harmlessly into the creek away from people and creeks are natural flyways for bats to feed on insects. Houses that can hold up to 2000 bats can be readily slipped on to lower bridge railings using brackets provided by local welder Jim Howe, and there is no need for them to be moved for structure maintenance - it was a Eagle Scout from Moraga who came up with the design.

BATS YOLO CAUSEWAY

CalTrans has a Bats and Bridges program where they seek to include bat housing in all their bridge upgrade designs. In just one such installation, there are about 850,000 bats living under the Yolo Causeway on Highway 80, as shown in the "fly-out" photo above.

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