Gray Whale Annual Cycle Gray Whale Home Page Journey North Home Gray Whale Annual Cycle

January February March April May June
July August September October November December


Spring Training and Migration

In March, males and newly pregnant females start their journey north. Mother-and-baby pairs dominate the lagoons. It's "spring training" time for the babies. They must be ready for their first journey north in four to six weeks—or sooner!

Daily Counts
From February to May, two research teams share data from the California coast as northbound whales pass.

Facts and Photos


Mother and baby gray whale in San Ignacio nursery lagoon, Mexico
Caroline Armon, Baja EcoTours
Gray Whale Migration Map


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