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65 MIGRATIONS One Very Large, Unexpected Guest If you were a humpback whale, what would be your reasons for entering San Francisco Bay? Two times, in 1985 and 1990. Maybe one should wonder why one Humphrey (not his real name) chose not to enter the bay on the other years. He was on his way from Mexico to Alaska. Too busy with friends to stop by? Enamored by a new lady? Behind schedule? Both visits, humans came to help send him out to sea again. The first time, they had to turn him around in the Sacramento River. The second time, he beached himself on some mudflats. But we humans, we have clever ways to guide the misguided. We made a net of sound, created by a platoon of boats, and banged on pipes to keep him going—from the Japanese fishing technique okami. And then like a siren out at sea, a boat, headed to the open ocean, broadcasted sounds of humpbacks about to feed. They played that hungry tune for 50 miles until Humphrey was safe in deeper water. He was clocked at swimming up to 30 mph. He has only been seen once since 1990, in 1991 near the Farallon Islands. Is he too embarrassed to stop by? ...

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