Play the video above to see these stories on AZ Illustrated Science for Wednesday, July 24:

WILDLIFE IN THE BORDER: The immigration reform bill, recently passed by the U.S. Senate, suggests spending billions of additional dollars on border security. The money would fund adding more Border Patrol personnel, equipment, more barriers, and an expansion of the U.S.-Mexico border wall; all occurrences that are raising red flags among environmentalists.

BIRD BUSINESS: Birding has become a big business throughout the country. Sierra Vista, currently, is one of the best-known birding destinations. The town hosts the annual Southwest Wings Birding and Nature Festival, which is on its 22nd year. Julie Bradley, who's on the festival's board of directors, talks about the economic impact that birders have in the state..

SOUTHWEST WINGS: A chat with a couple of the festival's guests about this year's event, which celebrates its 22nd year. The festival runs from July 31 to Aug. 3. Organizers say this is the longest running nature festival in Arizona, and one of the best in the nation.

BIRD AND WILDLIFE FESTIVAL: The annual Tucson Bird and Wildlife Festival will take place from Aug. 14-18 this year. The event will include workshops and programs, a nature expo, a keynote speaker, among other activities. The event is organized by the Tucson Audubon Society.

AZ Illustrated Nature is produced by Tony Paniagua. Contact him at tpaniagua@azpm.org