A regular species that might be seen on almost any day during the spring, summer, and fall, this species appears to be most common in spring from May 20th-June 1st and from June 25th-July 10th during the summer. It is annual during the fall; however, sightings are not regular with records distributed evenly from mid-August […]
Category: Birds of St. Paul Island
Parasitic Jaeger
The most reliable jaeger species in the Pribilofs, this species may be seen at almost any time from early May to early October. Sightings of this species are most likely after May 20th with a peak in late May, and a smaller summer peak in early July; however, its likelihood of being observed does not […]
Long-tailed Jaeger
This is the only species of jaeger not regularly found the entire period from May-October, though it is the second most regular species during the spring and often the most common species during the summer. It is not regularly found until at least May 20th with regular sightings through June 15th, when sightings drop-off a […]
Dovekie
A semi-annual arrival in the Pribilofs between May and August, this likely does not account for the species’ true abundance or arrival pattern in the Pribilofs. Nearly all known occurrences have been in conjunction with Least Auklets (Aethia pusilla) during spring and summer, with the first part of June accounting for the most records. It […]
Common Murre
This is an abundant breeding species on each of the four main Pribilof Islands, which is found less regularly during the winter months. The species begins to return to the islands and nesting sites by early-mid April with substantial numbers present by the end of that month or early May and full numbers on the […]
Thick-billed Murre
The most common breeding species in the Pribilof Islands, it is an abundant resident from the spring through the fall. Individuals begin to return to the islands in late March or early April with substantial numbers present by mid-late April. Many thousands are present by the beginning of May, with breeding commencing during the first […]
Black Guillemot
An arctic species that is likely found annually in the Pribilofs, generally in association with winter sea ice, though there are only sporadic reports of this species. This is one of only a few species that is more likely to be found in winter, which is why there are only about 10 local records, with […]
Pigeon Guillemot
A year-round resident of the Pribilof Islands, though there is no evidence that it breeds locally, this species can easily be found at most times of the year. It is most common in spring, during the second half of May, as the birds move between their wintering grounds at sea and the mainland or other […]
Long-billed Murrelet
There are only six known occurrences of this species in the Pribilofs, all in the spring during late May or early June except for a single fall record in late September. However, there is no reason to believe this species isn’t possible at any time during spring, summer, or fall with recent records in Alaska […]
Marbled Murrelet
This species has been recorded approximately 20 times in the Pribilofs with those records scattered across much of the year. The majority are from the spring (mid-May to early June), with a couple of summer records, several fall records, and a single winter record. This pattern of occurrence likely involves several modes of occurrence for […]