4/17/2023 0 Comments Ancient cloudwing meredilThey also eat large quantities of shrimplike krill (euphausiids). Prey includes shiner perch, capelin, walleye pollock, rainbow smelt, Pacific herring, Pacific saury, Pacific sandlance, rockfish (genus Sebastes) and sculpins (genus Triglops). ![]() Black-legged Kittiwakes and other gulls sometimes gather above groups of Ancient Murrelets, perhaps attracted to fish murrelets drive toward the surface (or to steal fish from them). When foraging in a flock, they sometimes dive nearly simultaneously. They catch their food by swimming underwater, typically diving straight downward until they reach the depth of their prey. Back to top FoodĪncient Murrelets eat mostly small fish and zooplankton. Key to this species’ marine habitats are upwellings and other currents that concentrate food and bring it to the surface. ![]() Some birds remain near breeding areas year-round, while others move southward in autumn, to winter well offshore along the continental shelf edge. Soon after chicks hatch, they go to sea with parents, sometimes foraging close to shore (especially in Alaska’s Aleutian Islands) but often farther from shore. Up to 10,000 birds may occupy a colony, but most colonies are smaller. They use both grassy sites and forested areas with Sitka spruce, western hemlock, or western red-cedar. They use rocky crevices or build earthen burrows for nesting. ![]() Ancient Murrelets breed in colonies along the shorelines of North Pacific islands, usually within 1,000 feet of the shoreline.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |