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Showing posts with label The Stokes Field Guide to the Birds of North America. Show all posts
Showing posts with label The Stokes Field Guide to the Birds of North America. Show all posts

Monday, November 03, 2014

How to ID a Cackling Goose, it looks like a small Canada Goose!

Cackling Goose, hutchinsii subspecies


All above photos, Cackling Goose, hutchinsii subspecies

Cackling Geese create excitement for birders when they show up in the East, and there is one being seen in Maine now. Look carefully when you see a flock of Canada Geese, and maybe you can find a Cackling Goose! See my other blog post here. These geese, who mainly nest in the arctic, look like very small Canada Geese, but are a different species. There are 4 subspecies of Cackling Goose. It is thought that the subspecies who usually shows up in the East is the nominate subspecies, Branta hutchinsii hutchiinsii, (also sometimes called "Richardson's Goose", "Richardson's Cackling Goose" or "Hutchins's Goose"). The above are photos I took in western Massachusetts on 11/8/09 is of the hutchinsii subspecies (confirmed by experts). ID of Cackling subspecies emphasizes head and bill shape, with hutchinsii having a ratio of bill length to depth of about 3:2. This bird in my photo has a short bill, a short, steeply rising forehead, a rather flattened crown rising to a bit of a peak at the back of the head, all characteristics of the hutchinsii subspecies. Most hutchinsii also have a narrowing of the white of the cheek patch at the level of the eye, also visible on this bird. This bird also has a very pale breast, as have the majority of hutchinsii. The back and sides are also pale, the back does not appear darker than the sides. There's noticeable pale edges to the wing covert feathers, creating pale diagonal lines.

Cackling Goose, unknown subspecies

Cackling Geese cannot always be identified as to subspecies, as with the above and following photos of an individual I photographed in Ohio (east of Toledo) in May 2005. Several experts concur that this might be a hutchinsii subspecies or possibly an intergrade between the taverneri and hutchinsii subspecies, but it cannot be definitively identified. To quote the excellent article on Distribution and Identification of Cackling Goose Subspecies by Mlodinow et al. "though birds breeding on the continental Arctic slope from the Mackenzie River west are thought to be taverneri, the precise border between taverneri and nominate hutchinsii has not been defined, nor has the degree of potential or actual intergradation between the two (J. Leafloor, J. Pearce, D. Derksenpers. comm.)."

This bird shows a more rounded head than the hutchinsii bird in my top photo, with a more gradual slope from the bill to the head, more characteristic of taverneriTaverneri subspecies have "stout and somewhat triangular bills". The breast of this bird is pale. Taverneri are "typically medium-gray-breasted, becoming darker on belly/flanks" according to the article. However, sometimes they can have pale breasts.

Here's the neck fully upright in an alert posture of the goose. The head looks faintly flattened and there's white flecking at base of the black neck, suggesting a very thin white neck collar. The article estimated that only 2-5% of taverneri adults have a neck collar and that about 10-20% of hutchinsii can have a neck collar.

Here's another posture with the head looking somewhat flattened. Note that under the chin you can see a thin black line running from bill to the black neck, called a gular stripe. This is sometimes seen in a small percentage of hutchinsii, whereas 40-75% of taverneri have a gular stripe according to the article.

Here's another posture where the neck looks short.

Cackling Geese of the hutchinsii subspecies mainly winter along the Gulf Coast from southeastern Louisiana down into Mexico and also from eastern Colorado to eastern New Mexico through western Texas and into Mexico. Of the Cackling Geese that show up outside of their normal wintering range and stray to the East in small numbers, almost all reports have been of the hutchinsii subspecies. They have been reported from Indiana, Ontario, western New York, southern Quebec and Nova Scotia down to Virginia with a few reports to North Carolina, South Carolina and a few from Florida.
Taverneri subspecies winters in mainly Washington and Oregon, although some may winter in the continent's center. There are few reports of taverneri in eastern North America. There's a record from Onondaga county, New York, Sept. 2004, Janesville, Wisconsin, Oct. 2004, Amherst, Mass. Oct. 2007 and maybe the same bird in Middlefield Conn. Nov. to Dec. 2007 for photos of this bird see here.
The other two subspecies of Cackling Geese are leucoparia and minima. Minima (called Ridgway's Goose) is the smallest and darkest of the subspecies and winters mainly in western Oregon and Washington and central California. Only a handful or so of reports for minima exist for east of the Mississippi and are for North Carolina, Illinois, Connecticut, Alabama, Virginia and Tennessee. Leucoparia (called Aleutian Goose) a medium-sized Cackling, has a broad, white, complete neck collar on all adults. It winters mainly California and a little in Oregon and there are no winter records for east of the Mississippi River that we know of.
So keep looking at Cackling Geese in the East, there may be other subspecies showing up besides hutchinsii. If you find them, let us know.

For more complete information and photos of all 4 subspecies, see our The Stokes Field Guide to the Birds of North America, page 12.

Also consult Distribution and Identification of Cackling Goose Subspecies, by Mlodinow et al. North American Birds, vol. 62, no. 3, 2008, pages: 344-360.

Thursday, November 14, 2013

How to Help Bluebirds in Winter!

We still have Eastern Bluebirds visiting us occasionally and even checking out some of their nesting boxes from this past breeding season. They even grab a snack of the dried mealworms. They usually move on when the weather gets really bad.


Bluebirds may sometimes remain in some northern areas in winter, much to people's surprise. Here's some tips for bluebird enthusiasts, on how to help bluebirds survive in winter.

1. Bluebirds can roost together in bird houses to keep warm. Insulate your bird houses by closing off all cracks, drainage holes, etc., with some sort of insulating material so less drafts and cold get into the bird house. Just leave the entrance hole open. Face bird houses away from prevailing winter winds.

2. Bluebirds mainly eat fruit and berries in winter. Plant your property with an abundance of crabapples and native, berry-producing shrubs such as viburnums and hollies (like winterberry holly). Place these berry plantings in sunny, protected areas, blocked from winter winds. The bluebirds will have a warm place to eat and use less precious energy.

3. Some bluebirds will come to food such as, hulled sunflower, suet, dried mealworms, and some of the many "bluebird meal mixtures" or nuggets. Generally most bluebirds do not learn to do this. You can certainly try putting out these foods, but your best bet is to have lots of berries planted in your yard.

4. Bluebirds like water (may help with processing the berries) and will visit bird baths and heated bird baths. In general, when it is very severely cold, some people think it is a risk for birds to bathe. Holding off on the water, or placing sticks over the bird bath to only allow birds to drink, not bathe, may be a good idea in this situation. Many birds will eat snow in winter to get water.

Most bluebirds move out of the northernmost areas of their range in winter. Even ones that may linger eventually move on, once their berry sources are depleted or ice-covered. For bluebirds, and many birds, there is a trade-off of staying more north in order to be first to claim prime breeding territories, yet risking survival due to bad weather. Some of these tips may help them survive and you feel you're helping them. Bluebirds are truly beloved.

For more complete information see Stokes Bluebird Book.

For the very latest identification information and range maps on all three species of North American Bluebirds; Eastern Bluebird, Mountain Bluebird and Western Bluebird, see our new best-seller, The Stokes Field Guide to the Birds of North America and the new regional editions, The New Stokes Field Guide to Birds: Eastern and The New Stokes Field Guide to Birds: Western Regions.

Friday, August 02, 2013

What Bird Is This?


What bird is this you may wonder. It sure does't look like a Red-winged Blackbird. Where's the red, where's the black?

This is a juvenile Red-winged Blackbird. The term “juvenile” refers to the first full plumage that a bird has when leaving the nest. You can see that this bird looks a little like an adult female, but has a more rich golden-buff ground color to its body and head (an adult female has a paler, whiter ground color to its body and head). Also, young birds at this time of year (late summer) have all new fresh feathers with little or no wear; adult birds at this same time have worn feathers, often looking very frayed at the edges. In juvenile plumage, the male and female Red-winged Blackbird look alike.

This juvenile bird will go through a molt from July to November, replacing most of its feathers. When done, male and female will look different, the female streaked brownish and whitish and the male more blackish with paler mottling. See page 717 of our The Stokes Field Guide to the Birds of North America for photos and descriptions of these birds.

It's amazing how much you can learn about birds and increase your bird ID ability, just by looking closely at the birds in your yard. Now is a good time to be on the lookout for juvenile birds.

For descriptions of Juvenile birds and the timing of how long they keep their juvenile plumage, see our new field guides,


and its regional versions,

It is great fun, and a challenge, to keep learning about birds!!

Thursday, March 28, 2013

Happiness Is... If You're An Author - New Stokes Guides!

Stokes Field Guides


Here is a display of our just published, The New Stokes Field Guide to Birds: Eastern and Western Region, as well as our national guide, published in 2010, The Stokes Field Guide To The Birds of North America, that was in Ding Darling National Wildlife Refuge bookstore yesterday where we did a book signing. We signed so many books! It is so fun to meet people and know our books will help birders identify and enjoy birds more! Our new regional guides are based on our national guide and contain all the latest information on birds and over 2,000 photos each. They are now available nationwide. Hope you get a copy and enjoy them!

Friday, March 22, 2013

Birding Contest: Mystery Bird of the Day, who is it? Guess correctly and win a new Stokes Field Guide


Today's quiz bird, can you guess who this is? Guess correctly and win The New Stokes Field Guide to Birds: Eastern Region and The New Stokes Field Guide to Birds: Western Region. Only 4 more days left in our countdown bird quiz.


Contest Rules

1. Each day, for the next 4 days we will post a bird quiz on our blog.

2. Identify the bird. Send us your answer here.

3. If you get the correct answer, your name will be put in a raffle. On March 26th, the publication date of our new guides, we will pull 10 names out of the raffle hat at the end of the day. The winners will each be sent an autographed set of our new guides, The New Stokes Field Guide to Birds: Eastern Region and The New Stokes Field Guide to Birds: Western Region.

4. You can enter the contest each day, but you will only win one set of books.
Remember to send your answers by filling out the email form here.


The New Stokes Field Guide to Birds: Eastern Region and The New Stokes Field Guide to Birds: Western Region are the most complete photographic guides to the birds of eastern and western North America ever written. These lighter weight, portable editions are based on our best-selling national guide, The Stokes Field Guide to the Birds of North America. They feature thousands (over 2,200 in the east and over 2,400 in the west) of stunningly beautiful photos showing all the field marks and every significant plumage of each species and they include the most up-to-date and extensive identification information of any field guide. (Note, these are entirely new books and not the same as the former Stokes Field Guide to Birds eastern and western regions published in 1996 which are going out of print.) We are so excited to bring to you these all new, lighter, more portable field guides, just in time for spring migration.

Wednesday, January 02, 2013

One Good Tern: Common Tern in Sanibel, FL, in Winter!

Common Tern, juv./1st winter seen on Sanibel FL beach, note the dark carpal bar on the wing.

Here's another view, the solid dark on the head goes all round the nape.

Here it is next to the look-alike Forster's Tern which lacks a carpal bar and the black does not go all around the nape.
Terns are tricky, you must look closely to find something different. Here is the Common Tern standing with some Sandwich Terns, which are larger than it and have yellow tips to their bills.

You never know what you'll find, that's the fun of birding. So, on Dec. 16th, when Don and I were looking over a group of terns on Sanibel Island, FL, one in particular caught our eye. It was a Common Tern, which is listed as "rare to very rare during winter" in A Birder's Guide to Florida.

Looking at Terns means you have to sort out subtle clues. This Common Tern is a juv./1st winter bird. The juvenile plumage is kept from Jul.-Nov. according to our The Stokes Field Guide to the Birds of North America. We noticed the dark line, the carpal bar, on its plumage and also the stand out red base to the bill. This tern was smaller than the Sandwich Terns it was sitting with. It might be confused with a Forster's Tern, which is commonly seen here. The Forster's has a relatively longer and thicker bill, longer legs and a distinctive separate black mask over each eye, not connected by solid black around nape as in other similar terns, like Common Tern. Neither the adult nor juv. Forster's Tern would have the dark carpal bar.

In birding, the way to find rarities, is to look closely, very closely. And also to know what the possible rare birds are that could show up in your area. "Chance favors the prepared mind", as the saying goes.

Friday, October 19, 2012

Rare Wood Sandpiper in RI is in The Stokes Field Guide to the Birds of North America!


Lesser Yellowlegs, might be confused with Wood Sandpiper. The Stokes Field Guide to the Birds of North America will help you sort out the differences in the most complete way of any other field guide.

A rare bird, a Wood Sandpiper, is now in Rhode Island and birders are flocking to see it. Although this species is a regular visitor to western AK, it is only a rare vagrant to the Northeast Coast and this is only the 7th time it has appeared in the lower 48! We are happy to say this species is included in our new
The Stokes Field Guide to the Birds of North America. It is not included in many other field guides and our guide has the most extensive photos and text on this species of any other guide. We show all of the major plumages of the Wood Sandpiper: summer adult, winter adult, juvenal, and in flight. So, If you are a birder looking for how to identify this rarity, ours is your go-to guide. To quote the Stokes guide,

Wood Sandpiper

Tringa glareola L 8"


“Fairly regular visitor to w. AK; vagrant down West Coast and along Northeast Coast. Shape: Much like Solitary Sandpiper but with slightly longer legs. Primary extension past tertials very short, less than 1/4 bill length (almost length of bill in similar Lesser Yellowlegs).
Ad. Summer: In all plumages, broad whitish eyebrow (from forehead to nape) contrasts with dark caplike crown and dark eye-stripe. Upperparts dark grayish brown with bold white notches along feather edges (similar Lesser Yellowlegs has finer spotting); head and neck finely streaked; breast and flanks lightly barred; legs yellowish green. Bill with paler base (all black and longer and thinner in Lesser Yellowlegs). May bob front or rear of body. 
Ad. Winter: Like ad. summer but with muted markings; spotting smaller on upperparts; neck and breast indistinctly streaked and washed with brownish gray. Bill with paler base.
Juv: (Jul-Aug) Like ad. summer but back dark brown with finer buffy spotting.
Flight: Dark wings and back; no wing-stripe; rump white; white tail with narrow barring. Toes extend fully beyond tail.
Hab: Bogs, marshes in summer; inland wetlands in winter. Voice: High-pitched mellow dewdewdew or slowly repeated jit.
Subssp: Monotypic."

Hope you get a chance to see and enjoy the Wood Sandpiper and, if not, keep looking at those Lesser Yellowlegs and Solitary Sandpipers to be sure they are not a rare Wood Sandpiper!


For more photos of the RI bird go
here.
and here.
For updates on where to find it go here.

Good Birding!

Thursday, August 16, 2012

Dickcissel, in SW New Hampshire!


Dickcissel, 1st yr. female

landed in a shrub behind our bird feeder.

Photos taken with the Canon SX 40 HS, from a distance, with superzoom, so excuse photo quality.

Property bird #198! That's what we had this morning at Bobolink Farm, our NH property, when this Dickcissel landed about 30 ft. beyond our bird feeder in a tall shrub. We heard a harsh, low-pitched "djeep" call and spotted the bird on top of a nearby willow shrub. I ran inside and grabbed a camera. We keep a list of all the birds we have seen on our property, so it is very exciting for us when a new bird shows up for the first time.

This is an uncommon bird in our neck of the woods, but our new The Stokes Field Guide to the Birds of North America does show it in our area on the range map, within the yellow dotted line, which connotes extralimital range in migration.

The above bird appears to be a 1st year female that has just molted out of its juv. plumage for it is very pale with little yellow wash underneath, appears to essentially have no distinctive reddish brown on the median or lesser wing coverts, has a suggestion of buffy wing bars, and the feathers of the wings show basically no signs of wear. Juveniles are browner overall and have fine dark streaking across their breast and on their flanks: they only keep this plumage until August.


The male, shown here, and photographed in FL in April,  (with a Canon 1D Mark IV) has a yellow breast with a central breast dot, black bib, yellowish eyebrow and malar region, white chin and reddish-brown wing coverts.

I wanted to document this new property bird with a photo, so when I ran into the house, the nearest, fastest-to-use camera was the Canon Powershot SX 40 HS, a digital point and shoot "superzoom." My big Canon 1D Mark IV with a big tripod and 500 mm lens would have taken longer to set up, and possibly spooked the bird. The bird did not stay long.

About the photos, (tech-head talk, skip this if you want),
This bird was backlit, at quite a distance from me, on a blowing in the wind shrub. Challenging photography. I used the SX 40 on the AV setting. The middle photo taken at 1/640, f 5.8, ISO 200, focal length 150.5 mm, the digital zoom ration is 195%, file size of photo was 1.94 MB, and photo was cropped. I used the digital zoom menu setting at 2.0x which zooms to a specified factor and shoots with reduced camera shake. The other two photos were taken at 1/1000, f 5.8, 200 ISO, 312% digital zoom ratio. Photos also cropped. There is plus and minus about using this Canon SX 40 camera. The plus is low cost (under $400) lightweight and it can capture birds at a far distance. However, it is often hard to use and you have to zoom in and out to find the bird. It is much easier to get a decent photo of a closer bird with a standard digital SLR (more costly) camera and telephoto lens. But all this is a topic for another blog post.