The Eastern and Western subspecies of Willet are often mentioned as likely candidates for splitting into two species. They differ in size, proportions, details of plumage, migration pattern, and have no overlap in breeding range and very little in winter range. There is a lot of good information in print about how to identify them […]
Why are they called goatsuckers?
The painting shown here was recently sold at auction Birds in the family Caprimulgidae, which includes Eastern Whip-poor-will (shown here), have been referred to as “goatsuckers” based on a superstition that goes back well over 2000 years. They all have tiny beaks that open to reveal an impressively large mouth used to catch flying insects, and […]
Red-winged Blackbirds showing off
This is the time of year when Red-winged Blackbirds are returning to marshes all over the continent, and the males are performing their showy displays to impress females and intimidate rivals. You might think the display simply involves fluffing up the body feathers and especially the red patches on the wings, but there is a […]
A new quiz on backyard birds
Test your “partial cues” recognition skills. Each photo shows only part of a common North American backyard bird. (All photos © David Sibley.)
Why do phoebes pump their tails?
Lots of birds have a habit of pumping (or wagging) their tails. It’s mostly open-country birds like phoebes, wagtails and pipits, Palm Warbler, Spotted Sandpiper, and others. Many hypotheses have been suggested to explain why the birds do it, but nobody came up with an answer until Gregory Avellis in 2011. He studied Black Phoebes […]
Cackling-ish Geese
Cackling Goose is a rare fall migrant through Massachusetts and I usually see a couple of them each fall among the hundreds of Canada Geese around Concord. I look forward to the challenge of sorting through the flocks and picking these birds out, and once a candidate is located the identification has usually been straightforward – […]
Peter Pyle on Sage Sparrows
The most significant change for North American birders in the 2013 AOU Checklist supplement is the split of Sage Sparrow into two species: Sagebrush Sparrow and Bell’s Sparrow. In this arrangement Bell’s Sparrow includes the distinctively dark coastal California subspecies belli, as well as the much less distinctive interior California subspecies canescens. Sagebrush Sparrow is […]
Another odd Snowy Egret, or a hybrid?
Recently on Cape Cod, Massachusetts, Mary Keleher noticed an egret with two long head plumes, and took a couple of photos. This bird matches well with the ones I discussed in 2011 in a previous blog post Little Egrets have been showing up in the northeast regularly enough for the last couple of decades that […]
Flycatcher identification by the calendar
Here are some eBird maps showing all records for the month of April for several species of small flycatchers in eastern North America. A glance at these maps will show which species are possible in your area in the next few weeks, and this greatly simplifies flycatcher identification. For most of the east, through most […]
The white eyelid of American Dipper
It’s one of the first things people notice when they get a good look at a Dipper – the eyelid flashes white when it blinks! This is so different from any other bird that it begs for an explanation. Understandably, many people assume that the flashing white eyelid must have something to do with the dipper’s […]
