Gray Gull Leucophaeus modestus Scientific name definitions

Fernando Medrano, Ignacio Escobar Gutiérrez, and Rodrigo Silva
Version: 2.0 — Published December 23, 2022

Movements and Migration


During the breeding season, individuals not attending the nest move from the colony to the coast after dark, returning to the colony shortly before dawn. Non-breeding birds migrate north as far as Ecuador and south to the Los Lagos Region in Chile.

Dispersal and Site Fidelity

Nothing known.

Timing and Routes of Migration

Gray Gull moves to non-breeding grounds in the austral winter, between March and August (19).

Migratory Behavior

Nothing known.

Control and Physiology of Migration

Very little known.

Recommended Citation

Medrano, F., I. Escobar Gutiérrez, and R. Silva (2022). Gray Gull (Leucophaeus modestus), version 2.0. In Birds of the World (S. M. Billerman, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.grygul.02