Some feral cats have lived in the Southern Methodist University area for years. SMU in 2005 began a feral cat removal program, in an effort to control the cat colony.
Volunteer Althea Webb says it's "hard to move cats." She says at one point about 18 wild cats lived in the area, but now she rarely sees more than a half dozen.
Webb says some of the remaining cats may be moved to a nearby bushy area.
Construction is scheduled to begin in November on the George W. Bush Presidential Center, with a single building housing a library, museum and policy institute.
The complex is expected to be finished by early 2013.