If there's a way to be at this park when the sprinklers are going, the birding will be much better. One eBird checklist had 19 species--including Willow and Dusky Flycatcher, 6 Orchard Orioles, and Nashville, Yellow and Wilson's Warblers--during a "sprinkler" event. Otherwise, this might be fairly quiet, typical park bird birding.

Willow and Dusky Flycatcher, Orchard Oriole, Nashville, Yellow and Wilson's Warblers

Parking also available along 5th and 6th Streets. There are restrooms at the city pool in the park, however they are apparently only open when the pool is open.