Yellow-bellied Sapsucker with deformed beak at Museum feeders.

Yellow-bellied Sapsucker (Sphyrapicus varius) with deformed beak.

We observed a Yellow-bellied Sapsucker at the Museum feeders for several weeks in January.  Unfortunately, we have not seen it for some time.  This individual spent most of its time feeding at the suet feeder and it stayed close by whenever the other bird were disturbed.  It rained one morning and this bird perched onto the wooden post under the predator guard, which served as umbrella, rather than seeking cover in the vegetation.  We noticed that his feathers were becoming matted which was probably due to the bird not being able to preen as well.  Beak deformity is a condition that can be caused by several factors including: malnutrition, genetics, and disease/parasites.  We reported the observation to a national database serviced by the USGS Alaska Science Center.  There you can review the various species that have been recorded with beak deformities.  A great deal of research has been performed with several populations of Black-capped Chickadee (Poecile atricapilla) in Alaska and Northwestern Crow (Corvus caurinus).  The problem is referred to as "avian keratin disorder" and effects other bird body parts that have keratin such as claws, feet, and legs.  Keratin is a protein layer, very similar to our fingernails, that covers and protects the bony areas of bird bodies, such as bird beaks.

Lingering Birds

Rusty Blackbird photo from

www.columbusaudubon.org

Fox Sparrow photo by Leo Kulinski

from www.whalesandwolves.com

Belted Kingfisher photo by Darlene Knox

Yellow-bellied Sapsucker photo by Leo Kulinski

from www.whalesandwolves.com

The relatively mild weather that has blessed Connecticut for much of the past 6 weeks should have been conducive to let late migrant birds linger around here for longer than they usually would. This is especially likely when there is an abundance of wild food, as there is this year. However, unlike the waterbirds discussed in my last post, there don't seem to be all that many migrant landbirds lingering around here. They do take more effort to find than waterbirds, but we have tried to look for them on a few occasions this month. This is not to say that we haven't had some success. Yesterday, I was greeted by a Yellow-bellied Sapsucker when I went up onto the Museum's deck to fill the feeders. When they get hungry enough they will visit suet feeders. On the 7th, Mike Doyle had a Belted Kingfisher at Bantam Lake's Pt. Folly. They will occasionally stay through the winter if there is enough open water and an adequate supply of small fish to eat. On the 5th, Buzz Devine counted 86 Rusty Blackbirds in a flock along the north side of the Little Pond Boardwalk. Four days later, I saw 2 at Cemetery Pond. They are quite nomadic, and probably have gone farther south by now, but every year we find a few Rusties around here during the winter. Some Red-winged Blackbirds also spend the winter here. Our most recent report of them was from the Museum's feeders on the 10th. Though I haven't seen a Winter Wren or Fox Sparrow on White Memorial property since 11/25, that doesn't mean that 1 or 2 aren't around here somewhere. I have seen a Fox Sparrow elsewhere in Litchfield in the past week. It is a little odd that we haven't seen any big flocks of American Robins around here since 11/25, especially given the continued abundance of Winterberry Holly berries. They may be around; just not in places that we haven't visited lately. All that will change this coming Sunday, 12/18, when we plan to cover White Memorial's property and Bantam Lake as thoroughly as possible for the Litchfield Hills Christmas Bird Count. If you would like to help, please email me at dave@whitememorialcc.org. I still need people who can work independently censusing birds along some of our outlying trails, like the Cathedral Complex and Trail Rider's Jump.

Litchfield Hills Summer Bird Count - An Explanation of Some of the Numbers

Yellow-bellied Sapsucker by Leo Kulinski

from whalesandwolves.com

Veery by Darlene Knox

Gray Catbird by Charles Tysinger from

carolinabirdclub.org

American Redstart adult male from tringa.org

As a followup to the posting that we did just a little while ago with the totals from White Memorial for the 2011 Litchfield Hills Summer Bird Count I wanted to clarify the reasons for some of the high numbers. No, we aren't imagining birds or counting the same ones several times over. Numbers like these do occur in some places at the height of the breeding season when there is a flood of new babies into the population. In many years this occurs after the Summer Bird Count. This year birds got started earlier than usual with their breeding activity so rather than incubating eggs during the SBC period they were mostly feeding nestlings. Some even had fledglings already! A dead giveaway to the presence of young is an adult carrying food or a fecal sac. That's why this type of observation is perfectly good as a means of confirming nesting for Breeding Bird Atlases or ebird. When we observe this behavior we take a few extra minutes to watch and listen for young birds. They are usually pretty quick to give away their presence with food calls when they are hungry. We then count the babies that we can see or estimate the number that we think that we can hear. It also helps to have excellent hearing like I have. If we can't see or hear babies we just add 1 more to the tally for the species of bird that is carrying the food item because we know that it is destined for a baby. The photos above show a few examples of the species of birds that were found in much higher-than-average numbers on the SBC this year, largely due to the inclusion of nestlings.

The Migrants Continue to Pour in to Litchfield

Yellow-bellied Sapsucker photo by

Lloyd Spitalnik via Google Images Savannah Sparrow photo from friendsofsherwoodisland.org via Google Images Brown Thrasher photo from friendsofsherwoodisland.org

via Google Images

Migrant birds have continued to pour into and through Litchfield County for the past few days. My previous blog post covered the first waves, and this post will talk about the next waves that have arrived. The earlier migrants were mostly waterfowl and other birds associated with water. They began to appear even before much ice had melted on Bantam Lake and our ponds. Now that the ice is all gone from them, even more birds in this category are moving through. A lot of them are fish-eaters. Common Mergansers have been here for over a month, but now they number around 400 at Bantam Lake. They have been joined by 4 Red-breasted Mergansers, which are very uncommon at inland bodies of water. Common Loons normally migrate through Connecticut in April, with one or two being seen daily at Bantam Lake. Imagine Mike Doyle's surprise last Wednesday, 4/6, when he counted a whopping 44 at the Lake. This could be a record high number for any inland body of water in this state. The next day, 23 were still there. Their numbers have dropped slowly since then to 9 as of yesterday as more of them continue their migration northward. During this same time span Double-crested Cormorants have appeared and increased in number to 20 as of 4/8. The fish-eaters have also included 2 Horned Grebes and a Red-necked Grebe (which is rare here) in the central section of the Lake on the 7th. Hunting from above have been many Bald Eagles and Ospreys. On the shore, the number of Great Blue Herons continues to increase daily, and an American Bittern appeared at the Litchfield Town Beach on the 7th. A Bonaparte's Gull was a rare find at the Lake's N. Bay on the 8th. Gull numbers, in general, are suddenly way up at the Lake.

Terrestrial birds have also been on the move. Swallows, especially, have seen a big increase in number in the past couple of days. We counted approximately 200 Tree Swallows at Bantam Lake on the 7th and about 100 at Little Pond yesterday. This latter count also included a Northern Rough-winged Swallow and a Barn Swallow. In the trees, Yellow-bellied Sapsuckers have surged in numbers since 4/7. On the ground, sparrow numbers and diversity have increased substantially lately. Fox Sparrows have been numerous at the Museum's feeders for a month, with 7 being counted there on 4/8. Savannah Sparrows have been seen at the Sutton's Bridge section of the Little Pond Boardwalk for the past 3 days, and one was seen a couple of hours ago on the west lawn of the Museum. Chipping Sparrows have been around the Museum for about 5 days. Song Sparrows have become quite numerous. Dark-eyed Juncos are everywhere! Best of all, a Brown Thrasher appeared in the Activity Field this morning. It sang from the tops of the Hawthorns for quite a while. This species has become very rare in Litchfield County, so it was a real treat to see it.

Results from Saturday's Bird Walk along N. Shore Rd.

Drake Northern Pintail from werc.usgs.gov

Continuing the theme of my recent blog postings about waterfowl surveying at Bantam Lake, this one gives the highlights of our public field trip along N. Shore Rd. this past Saturday, 3/12. The focus was on waterfowl at Bantam Lake and along the Bantam River from the Outlet downstream to the Oxbows. Fortunately for us, N. Shore Rd. affords ample views of these places. Otherwise, we would have had great difficulty accessing Pt. Folly and the Litchfield Town Beach due to serious flooding of those spots. On a positive note, this flooding brought many of the ducks and geese up close to the road as they foraged in the flooded bottomland. Whenever woodlands and shrublands become flooded, waterfowl are quick to exploit the new-found feeding opportunities. Our group of 30 people, including 15 Boy Scouts, were treated to excellent views of a Cackling Goose, 350 Canada Geese, 10 Northern Pintails, 2 Green-winged Teal, 27 American Black Ducks, 70 Mallards, a hybrid American Black Duck x Mallard, 45 Ring-necked Ducks, 2 Buffleheads, 4 Common Goldeneye, 40 Common Mergansers, and 5 Hooded Mergansers. Though 8 Wood Ducks were present, only 6 members of our group got to see them because these birds hid so well among the shrubs. Waterfowl weren't the only birds spotted on this trip. Everyone got to see a Yellow-bellied Sapsucker as it foraged among the trees by the Butternut Brook bridge, a male Eastern Bluebird as it sang from the tops of the trees at the Bantam R. Oxbows, a Red-bellied Woodpecker at Gail Scoville's feeders, and numerous Black-capped Chickadees, Tufted Titmice, White-breasted Nuthatches, and other common birds. In all, we saw 38 species of birds in 2.5 hours along 1.25 miles of road. We also saw a Muskrat, 2 Red Squirrels, and lots of Gray Squirrels. That's pretty good!