From : Angus Wilson Sent : Tuesday, January 3, 2006 7:35 PM To : NYSBirds-L@cornell.edu, libirding@yahoo.com Subject : [NYSBIRDS-L:2703] Status of Barnacle Geese in New York Thanks to Rob Jett for bring up the issue of Barnacle Geese and their origins. I should begin by pointing out that the Eisenhower Park (situated in Nassau County, Long Island) bird has been seen on the pond below the Korean War Memorial almost daily since the beginning of December 2005. Reports are often posted on Dianne's (last name?) excellent Long Island Birding Web Site: http://www.libirding.com/Sightings.html I can confirm that the Eisenhower Park Barnacle Goose is NOT banded and appears to have both hindtoes! These are often clipped off by waterfowl keepers to indicate captive birds. As to its origins........ well this is a very difficult question and something that NYSARC has been thinking long-and-hard about. Most authorities believe there are perhaps a few wild birds reaching the eastern Atlantic states and Martime provinces but that there are also plenty of escapes wandering about the continent. Some escapes are known and some are strongly suspected. The question becomes, for any given bird what is its origin? Although a population of Barnacles (~40,000 pairs) breed in Greenland, this is on the northeastern coast of this immense island and at present there is little evidence that these birds wander to the west coast where they might come into contact with Canada Geese (which traditionally winter on eastern Long Island) or Greenland White-fronted Geese. Of course, with more research this perception might change. Given the uncertainties, NYSARC has taken a cautious approach (mirrored by almost every other state or provincial records committee) and has accepted most of the reports with the qualifier 'origins uncertain'. This should not detract from the importance of the sightings (it is NOT a rejection) but simply acknowledges the realities of dealing with a very attractive goose that is popular with waterfowl collectors. Although there are uncertainties, it is very important for us to gather data on the numbers of Barnacle Geese occuring in the state each year. Are their patterns to their occurance? Are we seeing the same few birds returning in successive winters? Consequently, all sightings should be submitted to NYSARC, including birds seen during the warmer months. There have been recent reports of a summering Barnacle Goose from Connecticut and it is likely summer occurrances are under reported due to natural assumptions about the origins. Likewise, we would really like to hear from aviculturists or their friends, who might have lost (or released) waterfowl including Barnacle Geese. To date, NYSARC has only reviewed 12 sightings (1979-2003, involving up to four birds in a group) from various parts of the state. In reality there are many more sightings than this and it is unfortunate that we do not receive a fuller data set for the permanent record. There are many people around the country interested in the patterns of Barnacle Goose occurance and they look to vetted reports for their raw data. You can find details of the Barnacle Goose reports we have received by following this link: http://www.nybirds.org/NYSARC/RecordsSummary.htm Two additional sightings from 2003 will be described in the 2003 NYSARC Annual Report that will be published in spring issue of The Kingbird. Cheers, Angus Wilson New York City