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Search for the Sonoran Blue Butterfly

  • Alum Rock Park 15350 Penitencia Creek Road San Jose, CA United States (map)

Search for the Sonoran Blue Butterfly
with Liam O’Brien
Saturday, March 5, 11:00AM-2:00PM
Alum Rock Park, 15350 Penitencia Creek Road, San Jose
$14, pre-registration required, $6 per car parking fee
Ages 12 and up

Join local lepidopterist Liam O’Brien to look for what is called “The Most Beautiful Small Butterfly in the United States.” Imagine if you can a small butterfly, about the size of a nickel, slowly fluttering before you like a piece of electric blue foil. That is the Sonoran Blue. This creature is a true harbinger of spring, emerging much earlier than most other butterflies. It has a very limited range in the Bay Area, and Alum Rock Park is the go-to spot for this mesmerizing beauty. Many other species might be there with this wacky El Niño: Large Marbles, Silvery Blues, Veined Whites and more.

It will be an easy walk through the park and we’ll stop for a break midway through (bring lunch or a snack). Don’t miss this chance to learn about butterflies from a winner of
Bay Nature’s Local Hero Award for Environmental Education!

For ages 12 and up. Cost is $14 per person and you must
pre-register online here. There is a $6 per car parking fee at the park. If it's raining, the walk will be postponed to Saturday, March 26th.