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Delta and Dawn, also known as the Delta whales, are two humpback whales, a mother and her calf, who entered San Francisco Bay in early May 2007. They swam up the Sacramento River approximately 90 nautical miles (170 km) upstream from the Golden Gate, [1] [2] about 20 miles (32 km) further inland than Humphrey the Whale had
The whale, first spotted at Oakland's Outer Harbor October 10, 1985, [6] swam up the Carquinez Strait, the Sacramento River and under the Rio Vista Bridge to a dead-end slough 69 miles (111 kilometers) from the ocean.
Exclusive footage of early efforts to get the whales back to the ocean. Scientists aboard the 87-foot Coast Guard Cutter "Pike."
24 cze 2008 · Whales in the Sacramento Delta. NewsWatch 2007: When whales swam up the Sacramento River recently, the broader problem of wildlife entanglements resurfaced. UC Davis wildlife...
Delta the Whale in the Sacramento River. Whales are occasionally found far inland after navigating the river for food or refuge and then losing track of how to get back to the Pacific Ocean.
Sharing the Road with Whales & All Marine Mammals. Humpback Whale (Delta/Dawn) breaching in Sacramento River S. Wilkin/NOAA OPR. Each winter and spring, gray whales migrate near shore between Arctic feeding and Mexican breeding grounds.
After dallying in fresh water for more than two weeks, the whales made a final dash for the ocean Tuesday, moving through San Pablo Bay at a brisk 5 miles per hour.
