Primarily a winter resident, this species is found regularly into the early spring. It is most common when coverage is at a minimum; with most individuals moving north by late winter/early spring, but they do linger into the spring most years though rarely past May and very rarely into late June and even July with […]
Primarily a winter arrival, this species is most often found during mid-winter amongst the large mixed-species flocks of Somateria eiders that congregate around the Pribilofs in some years. This pattern leads to very few sightings of this species in total, though there are a couple records of birds from early May and October when birders […]
This is essentially a resident non-breeding species in the Pribilofs, with a poorly defined seasonality due to omnipresent non-breeders that are typically present year-round. It is an abundant winter resident in near shore and offshore waters with birds lingering late into the spring and typically into and through the summer months in small numbers. Large […]
Like the other eiders, this species is most common during the winter months with a few lingering individuals being found during spring in most years. The majority of individuals have left by May, though birds do linger into mid-May on a regular basis but are typically gone before the 25th of that month. It is […]
This may be the most consistently common species in close proximity to each of the Pribilof Islands as large numbers winter locally as well as over- summer, though no nesting activity has ever been documented. It is perhaps the least defined non-resident species from a temporal basis as the numbers seem to ebb-and-flow during the […]
The rarest of the three species of scoter that have been found in the Pribilofs, there are 10+ local records with the majority of sightings during mid-late May, which is to be expected for a diving duck. It is quite possible that this species appears more regularly during late fall, winter, and early spring amongst […]
This is a winter resident species that is seen regularly through late May and into June. This species is most common prior to mid-May, when flocks begin to depart the islands leaving smaller groups and singletons to remain with the latest spring count of double digits being 11 from 16 June 1999, though larger numbers […]
A winter resident, this species is regularly seen into late May with smaller numbers seen sporadically into mid-June. The largest numbers are last seen on approximately June 5th, with the latest spring count of double digit birds being 10 on 10 June 2012 with records in only eight years from the end of June through […]
This is a common year-round resident that breeds in small to moderate numbers on St. Paul Island and winters in large numbers throughout the Pribilofs. While the largest numbers are present during late winter and early spring when numbers peak, it can be encountered in moderately large numbers in early May though most non-breeders have […]
This is a normal, though sparse, winter resident that is regularly found during early spring. They become less reliable by the end of May and are rarely encountered after early June with only a few records of lingering summer birds. There are a handful of summer arrivals, most commonly in early July, which is likely […]
