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        Calendar: May 2015

Natural Events

Dense fog is common during May and June in Channel Islands National Marine Sanctuary.

Gray whales (Eschrichtius robustus) migrate north through Channel Islands National Marine Sanctuary from calving grounds in Baja California, Mexico to Alaskan feeding grounds (Mid-February through May).

Blue whales (Balaenoptera musculus), fin whales (Balaenoptera physalus), and sei whales (Balaenoptera borealis) arrive in the Channel Islands National Marine to feed on krill from the nutrient rich, upwelled water (late-May through September).

Humpback whalesHumpback Whales (Megaptera novaengliae) feed in rich, upwelled waters of Channel Islands National Marine Sanctuary (May through August).

Pacific harbor seal (Phoca vitulina) pupping season on San Miguel Island (February through May).

Brant geese (Branta bernicla) stop to rest and feed in the Channel Islands region on their annual migration between Mexico and Alaska (March through May).

Endangered Least Terns (Sterna antillarum browni) can be seen in the Channel Islands Region (May through August).

Pink-Footed Shearwaters (Puffinus creatopus) and Sooty Shearwaters (Puffinus griseus) visit the Santa Barbara Channel from the southern hemisphere (May through October).

Ashy Storm-Petrels (Oceanodroma homochroa) and Black Storm-Petrels (Oceanodroma melania) visit the Santa Barbara Channel (mid-May to mid-October).

Red-Necked Phalaropes (Phalaropus lobatus) can be seen in the Santa Barbara Channel in the spring (April and May) and fall (August through October).

California sea lion (Zalophus californianus) pupping and breeding season (May through July).

Xantus's murrelets (Synthiboramphus hypoleucus) breed and nest on the Channel Islands (March through July).

Peak spawning season for Grunion (Leuresthes tenuis) on southern California beaches. Grunion leave the water at night to spawn on the beach in the spring and summer months two to six nights after the full and new moons. Spawning begins after high tide and continues for several hours (late March through early June).

Female loggerhead sea turtles begin coming ashore on Georgia's barrier islands to dig nests and lay approximately 120 eggs per nest. The turtles spend time at Gray's Reef foraging on crabs and sponges and jellyfish. They also rest under the sandstone ledges.

Surface swarms of krill attract feeding salmon, and seabirds within the Cordell Bank Marine Sanctuary

Peak upwelling period continues into June in Cordell Bank Marine Sanctuary.

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