PHOTO: AZPM
Saguaro National Park Superintendent Darla Sidles and Manzo Elementary counselor Moses Thompson discuss the upcoming cactus count.

The superintendent of Saguaro National Park and a Tucson public school counselor say they are ready for BioBlitz 2011.

Superintendent Darla Sidles and Manzo Elementary counselor Moses Thompson discuss the upcoming census of living things in the park in this segment of Arizona Illustrated.

Volunteers will fan out across Saguaro National Park Oct. 21-22, and officials say they are hoping to find a new species or two.