The Great Blue Heron Rookery in Commodore Park, which was built as part of the construction of the locks, accommodates upwards of 50 nests every February to late May. This slow-moving bird lives in marshy habitats and feeds on fish and other small animals.
The park is a great place for Birders and Photographers to spot Great Blue Herons around Seattle.
The Teredo bores into wood and makes tunnels where it resides. Though it looks like a worm, it is actually a species of saltwater clam that feeds on the wood in which it resides.
The photo above shows evidence of the extensive wood damage done by Teredos on the gates of the locks.
Harbor seals are also present in the locks and like to feed on salmon as they pass through the ladder. To protect salmon populations, devices that emit loud sounds were placed underwater near the locks. These deterrents frighten the seals and drive them away from the general area.
