Many rare birds have visited the preserve including white ibis, scissor-tailed flycatcher and western kingbird. Cassin's kingbird and the western kingbird are similar in appearance. Say's phoebe, ash-throated flycatcher, Cassin's kingbird, and western kingbird are also found. The western kingbird ("Tyrannus verticalis") is a large tyrant flycatcher. Most spectacular have been western kingbird (fall 2005) and Kirtland's warbler (fall 2004).