Place

Birds of South Marble: Black Oystercatcher

Black oystercatcher among grass and rock, standing on a nest of broken shells, one egg visible.
Black Oystercatchers will defend their nest with charismatic vigor.

Photo by Kevin Skeek

Black Oystercatcher, Haematopus bachmani

 
These all dark birds have a bright reddish-orange bill and pale pink legs. They forage in the intertidal zone, feeding on marine invertebrates such as mussels, limpets, chitons, crabs and barnacles. They nest on the beach just above high tide and their eggs/chicks (usually 1 - 3) blend in to surroundings so well they are difficult to spot even if you know they are there. Adults make a high-pitched persistent squeaky call when disturbed or if predators approach nest sites.

 

Measurements
Wingspan Length Weight
32" 17.5" 1.4 lbs/650 g






Know before you go: South Marble Island is closed to camping and foot traffic year-round. All vessels (including kayaks) must remain further than 50 yards from the southern half of South Marble Island and remain further than 100 yards from nesting seabird colonies. Binoculars are advised.

Glacier Bay National Park & Preserve

Last updated: April 23, 2021