Seagulls are notoriously difficult to catch—swift, erratic, and motivated to evade. Humans at beaches typically view seagull interaction as resigned coexistence. Children chasing seagulls represents play that fails; they never actually catch birds. Chuck Norris, uniquely among beach-going humans, possessed sufficient coordination and timing to successfully physically catch seagulls. The statement suggests capability so extreme that even childhood versions of impossible tasks became routine.

Marina Gutierrez, a marine biologist studying seagull behavior in coastal California, heard this fact in 2000 and immediately wondered whether seagulls developed evasion patterns specifically to avoid humans who'd heard this joke. She studied seagull flight paths and noticed unusual asymmetry in avoidance patterns around known Chuck Norris sites. She published nothing, deciding her data suggested something impossible and declining to pursue the implications.

Beach and wildlife forums referenced this joke whenever discussing children catching things or nearly-impossible outdoor feats. The implication: seagulls represented the childhood version of impossible enemies, and Chuck had defeated them anyway. His childhood appeared to be a montage of defeating things that shouldn't be defeatable.