Birds along the Santa Fe River include Killdeer, Say's Phoebe, Western and Cassin's Kingbird, Bullock's Oriole, Blue Grosbeak, Lark, Song, and White-crowned Sparrow, and Willow Flycatcher in migration. Up on Caja del Rio, birds include Curve-billed, Sage, and Bendire's Thrashers, Mockingbirds, and Scott's Orioles. This is an unusual area that contains a strange variety of "desert" species often found further south.

When submitting eBird observations at Caja del Rio, it is most helpful to start a new checklist for each hotspot within the area. Use this general hotspot when you have a checklist that includes multiple locations or if no other hotspot or personal location is appropriate for your sightings.

The Santa Fe River Canyon contains a bosque of willows and cottonwoods that is being restored. This restoration runs for several miles along the road and has a number of entry points through the fence. Pull well off the road as traffic can be heavy. The Caja del Rio sits on a high mesa above the Santa Fe River. There are sparsely scattered sections of Pinon-juniper woodland, large sections of choya forest, and open grassland. The area contains a number of dry arroyos with associated Pinon-juniper. Directions: From the intersection of NM599 (Santa Fe Relief Route) and Airport Road go southwest past the turnoff to the Santa Fe Airport and the Santa Fe Sewer Treatment Plant. At 1.9 miles is the Santa Fe River Preserve on the left. Continuing another 1.3 miles, a gravel road on the right (SF County 56C) leads up the side of the mesa and onto the top to BLM land (Caja del Rio). A high-clearance vehicle is recommended for this road. Beware of rattlesnakes in this area.