no sexual dimmorphism (California, USA; 2009-07-09)
Pink-footed Shearwater Puffinus creatopus
Native Range: Pacific Ocean
Notes:
a rather large, white-bellied shearwater with a two-toned bill and relatively slow wingbeats; often seen in association with Sooty Shearwater; breeds on islands off the coast of Chile but travels widely at sea.
brownish-gray above; pink bill with black tip (California, USA; 2009-07-18)
whitish body underneath; white wing linings (California, USA; 2009-07-18)