A recent study revealed that wing-harnessed tracking devices negatively affected reproductive success of Great Black-backed Gulls (Larus marinus; Langlois et al., 2023). To evaluate the generality of this effect in large gulls, we investigated the reproductive performance associated with the same type of GPS mounted system in four Mediterranean breeding colonies of the Yellow-legged Gull (Larus michahellis) in 2022. We found no significant difference in reproductive parameters among the three studied nest types (i.e., adult handled with mounted device, adult handled with no device, and control) and no interaction with colony of origin. The impact of the GPS harness system on short-term reproduction is therefore not generalizable among larid species, and thus should be tested and reported whenever a new tracking program is employed.