Marbled Murrelet Nest Data

Incubation lasts about 30 days and chicks fledge after about 28 days after hatching.

Marbled murrelet nest data.

The marbled murrelet is a small seabird from the north pacific. M arbled murrelets produce one egg per nest and usually only nest once a year however re nesting is documented. The marbled murrelet has declined in number since humans began logging its nest trees in the latter half of the 19th cen. Marbled murrelets are seabirds that forage in marine waters but nest in forests.

They typically lay their single egg high in a tree on a horizontal limb at least 4 inches in diameter with steller s jays crows and ravens the main predators of murrelet nests. Marbled murrelet nesting habitat suitability model for the british columbia coast. It nests in old growth forests or on the ground at higher latitudes where trees cannot grow. Nests are not built but rather the egg is placed in a small depression or cup made in moss or other debris on the limb.

The sexually mature adult murrelet at age 2 or 3 of an average 15 year lifespan generally lays a single egg on a mossy limb of an old growth conifer tree. It is a member of the auk family. They typically lay their single egg high in a tree on a horizontal limb at least 4 inches in. Agenda item b attachment 17 page 17 of 46.

Murrelets generally nest in solitude although multiple nests sometimes occur within a small area. Murrelets generally nest in solitude although multiple nests sometimes occur within a small area. They locate their nest in a depression on a mat of moss lichen or debris accumulations on large branches. Marbled murrelets nest in oregon from mid april to mid september.

They typically lay their single egg high in a tree on a horizontal limb at least 4 inches in. This data is an aggregate of predicted suitable habitat from a wide scale algorithm using elevation distance inland forest cover tree height and age as well as two separate regional nesting habitat models. In this paper we review the nesting chronology of the marbled murrelet using data from four published studies that specifically addressed the topic n 26 records additional published breeding records n 26 and unpublished breeding accounts n 35 of the marbled murrelet from alaska. Both sexes incubate the egg in alternating 24 hour shifts for 30 days.

It is a temporal snapshot. Its habit of nesting in trees was suspected but not documented until a tree climber found a chick in 1974 making it one of the last north american bird species to have its nest described. Murrelets generally nest in solitude although multiple nests sometimes occur within a small area.