Page 



FIGURES 



Frontispiece: Identification features of the gray whale ii 



1. Distribution of the gray whale 5 



2. Migratory routes of the gray whale (southern part) 8 



3. Daily counts and extrapolations of gray whales passing San Diego during 



the southward migration, 1954-55 9 



4. Gray whale winter grounds 10 



5. Northern area of migrating and wandering 11 



6. Vizcaino area of migrating and wandering 11 



7. San Juanico area of migrating and wandering 11 



8. Cabo San Lucas area of migrating and wandering 11 



9. Former San Diego calving area 12 



10. Vizcaino -Scammon calving area 13 



11. San Ignacio calving area 13 



12. Magdalena calving area (northern part) 13 



13. Magdalena calving area (southern part) 13 



14. Yavaros calving area 14 



15. Reforma calving area 14 



TABLES 



1. Frequency distribution of group size of gray whales during the south- 



ward migration past San Diego 17 



2. Frequency distribution of group size of gray whales on the breeding 



ground 18 



3. Counts and extrapolations of gray whales passing San Diego, California, 



during daylight hours, 1956-57 24 



4. Summary of shore censuses of gray whales in southward migration, 



1952-53 to 1956-57 25 



5. Summary of air censuses of gray whales on winter range, 1952-57 .... 27 



IV 



