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The San Dieguito River Park
18372 Sycamore Creek Rd.
Escondido, CA 92025
Phone: (858) 674-2270
Fax: (858) 674-2280
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The River Park has converted from a print-based distribution system to a web-based system. If you are interested in receiving e-mail notices when the quarterly activity schedule is posted to the website, and news of special events occurring in the Park, click above to send us an e-mail.

Pacific Tree Frog: Pseudacris regilla

Pacific Tree Frogs are generally found anywhere where there is water in the San Dieguito River Park. They breed from November to July and the calls of choruses of males hoping to attract females can be quite deafening at night. These calls have served as a nighttime backdrop for many Hollywood movies and TV shows over the years, so are known the world over! In the daytime, the frogs hide under debris, in vegetation or in burrows in the ground. This is the most common native frog in Southern California. Introduced Bullfrogs are a threat to the much smaller (0.75 to 1 inch long) Pacific Tree Frogs.

Text and Photo by Robyn Waayers. Robyn has been a resident of San Diego County since 1977, and is a biology instructor at Palomar, Miramar and Southwestern Colleges, and is also a freelance nature photographer. Contact information:











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