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The Spoon-billed Sandpiper has one of the most striking and unusual bill shapes of any bird, but the function of the odd spoon-shaped bill has never been determined, and I was particularly interested in watching the birds in Thailand for any clues that might help solve this mystery.

My trip to Thailand (4-14 Feb 2010) was a great success, and I’ll be posting some observations, photos, and sketches here over the next few days. The known Spoon-billed Sandpiper site at Pak Thale was very reliable, with several individuals seen each day there, and up to six in view at once (7 and 10

I’ll be in Thailand for the next two weeks, hoping to fulfill a decades-long dream to see Spoon-billed Sandpiper. Like many birders, I have always been fascinated by shorebirds – their subtle and elegant shapes and colors, the identification challenges they present, and most of all by their powers of flight and their long migrations.

minor updates 2 Mar 2010 Identifying female goldeneyes is extremely challenging. Differences are subtle, subjective, and inconsistent, but experienced observers still build up a “template” of expected impressions that allow them to identify the species with confidence. Describing these differences, and identifying individual birds from photos, can be very challenging because the process of identification

Distinguishing Common and Barrow’s Goldeneyes is always a challenge, and particularly so when the bird is a female. One of the most conspicuous and easily judged differences is bill color – Common Goldeneye has a black bill with a small yellowish patch at the tip, while Barrow’s has the bill almost entirely orange-yellow. This works

I’m back to the website after a long holiday break, and I have a few things I’ll be posting over the next two weeks. For now, important news to report is that my seminar at the Yale School of Forestry has been postponed. Originally scheduled for Jan 20th, it will hopefully be rescheduled for the

Stunning news from Bosque del Apache NWR in New Mexico: a female Sungrebe was photographed there on 13 November 2008, those photos here. It was correctly identified on 17 November from the photos, then refound and photographed more on 18 November. This is not only a new species for North America, but a whole new family. A

[Major updates 25 Feb 2008, adding new information about the introduced Siberian populations] You might think that the words “intriguing” and “House Sparrow sightings” are mutually exclusive, but here’s a case where they go together! In October 2007 a flock of five House Sparrows showed up in the coastal village of Shishmaref in northwest Alaska.