A state-protected bird called the cormorant is refusing to move from the old structure, despite Caltrans' best efforts to lure them to the new span.
There are about 800 cormorants on the old bridge.
Caltrans will now spend $12 million to speed up work designed to keep them out before they return for the next mating season and lay their eggs.
If that happens, the next phases of demolition will likely be furthered delayed and even more expensive.
