A rare fall vagrant, this species is best looked for during the month of September, though the extant records do not leave a strong sense of when is exactly best during the fall period. Records of this species include both the American-breeding (arcticola) and Asian-breeding (flava) subspecies, with the Asian birds being more likely than […]
A rare vagrant to the state of Alaska, this species has been found surprisingly often considering, with records every 10-15 years on average in the Pribilofs. A late migrant in western North America, this species is most likely to be found in very late spring or early summer in the islands with late June or […]
A regular spring migrant/vagrant, this species is found most reliably from May 25th to June 1st, though it may be found as early as mid-May or as late as mid-June in the spring. There are only two known summer records: one from 1995 when remarkably a pair feeding young was found on August 1st, providing […]
A year-round resident with reduced numbers during mid-winter, especially in heavy ice years, this species is nonetheless always present around the islands and can be found on nesting cliffs throughout the year. The fewer total birds present during the winter months is noticeable with the comparatively large numbers present during the spring, summer, and fall. […]
A common spring and winter resident, which is found more rarely during summer and fall, this species can often be quite hard to see during some parts of the year. Small numbers are regularly encountered through the spring (until late June or early July), but numbers are often times quite small and this species can […]
There is a single late summer (August) and late fall (October) record of this species (both from St. Paul Island). Most other North American records of this species are from the late fall when this hardy species migrates, while the early summer fits with a pattern of post-breeding dispersal. These are likely to be the […]
There is a single Pribilof record (St. Paul Island) from early August, which was also the first found in North America. Subsequent Alaskan records have been from the spring or summer and post-breeding dispersal in late summer is likely to have the greatest chance for a repeat appearance of this species in the islands. […]
There is a single early spring (April) and two summer (July and August) records for this species in the Pribilofs. The early spring arrival fits a pattern similar to those seen in the western Aleutians, while the summer records are likely to be individuals undergoing post-breeding dispersal like many other herons and egrets do. […]
This species has been found 11 times in the Pribilofs from late May to late July. The records are split with seven during the spring and four during the summer where early June seems to be the best time to come across this vagrant in the islands. […]
The first and only record for Alaska and the continental United States (previous records are from Hawaii) coming from St. Paul Island, this species is a very common migratory raptor of temperate East Asia. The timing of this record is unexpected, though likely this individual arrived in the region as a fall wanderer and continued […]
