Showing posts with label Red-bellied Woodpecker. Show all posts
Showing posts with label Red-bellied Woodpecker. Show all posts

02 March 2014

2013-2014 Winter Feeder Count Results

Lindsay and I recently completed our sixth consecutive Indiana Audubon Society Winter Bird Feeder Count, an easy and fun citizen science project during which the greatest number of each bird species observed at feeders in your yard on the 20th to 25th of November, December, January, and February are tallied.  Although I mentioned to Lindsay a couple of times during this count how active our feeders were nearly every day, our results show that the number of individuals has been decreasing since we started the count in 2008-2009.  For our results from past Winter Bird Feeder Counts, see our posts here (2012-2013), here (2011-2012), here (2010-2011), and here (2009-2010).

Some of our feeders
Looking back at data from our counts over the years, it quickly becomes apparent that 2008-2009 must have been a standout birding season, as we tallied 27 species at our feeders during that count but have not had more than 23 since.  During the 2013-2014 count, we were just under our average from the previous years of 22.8 species, as we tallied 21.  We had 14 species in November 2013 (the fewest total number of species ever during our counts), 15 species in December 2013, 17 species in January 2014, and 20 species in February 2014.  The 20 species we observed in February was the most in any month of the Winter Bird Feeder Count on our property since the 2008-2009 count, when we had 20 species in December and 25 species in February. 

We get a lot of traffic on the ground under the feeders
The biggest discrepancy in results from this year versus the average of past years was in November and December, as we observed three fewer species than our average numbers during each of those months.  We began feeding a bit later this year than in past years, so it is possible that it takes the birds a little while to find our feeders once we start feeding for the winter and that if we had started feeding earlier in the winter/fall of 2013 our number of species observed in the early months of the count might have been more comparable to our average.

American Tree Sparrow
The list of species observed during our 2013-2014 Winter Bird Feeder Count is found at the end of this post.  Species not observed during this count that we have seen on at least one other count include Cooper's Hawk (Accipiter cooperii), Northern Flicker (Colaptes auratus), American Crow (Corvus brachyrhynchos), American Robin (Turdus migratorius), Gray Catbird (Dumetella carolinensis), Eastern Towhee (Pipilo erythrophthalmus), Snow Bunting (Plectrophenax nivalis), Rusty Blackbird (Euphagus carolinus), Common Redpoll (Carduelis flammea), and Pine Siskin (Carduelis pinus); however, the first four of these were seen on our property (just not at the feeders or during the count period) this winter.  Conspicuously absent from our feeders (and those of others in this area) in 2013-2014 were the winter finches (such as Common Redpoll and Pine Siskin).  We've tallied a total of 31 species using our feeders (or hawks showing an interest in feeder birds) during the six seasons that we've participated in this count.

Dark-eyed Junco (male)
It was much colder and we had more snow during the 2013-2014 Winter Bird Feeder Count than in the past few years, but the temperatures and snow cover during the count periods were similar to those in 2008-2009.  The low temperature during our 2013-2014 count was -7  degrees Fahrenheit in January and the high temperature reached 45 degrees Fahrenheit in February.  The deepest snow cover during the count was observed in January and February (8 inches).

Tufted Titmouse
Species observed most frequently (those present during all four count periods) in 2013-2014 were Red-bellied Woodpecker (Melanerpes carolinus), Downy Woodpecker (Picoides pubescens), Blue Jay (Cyanocitta cristata), Black-capped Chickadee (Poecile atricapillus), Tufted Titmouse (Baeolophus bicolor), White-breasted Nuthatch (Sitta carolinensis), American Tree Sparrow (Spizella arborea), Song Sparrow (Melospiza melodia), Dark-eyed Junco (Junco hyemalis), Northern Cardinal (Cardinalis cardinalis), House Finch (Carpodacus mexicanus),  American Goldfinch (Spinus tristis), and House Sparrow (Passer domesticus).

White-breasted Nuthatch
Species observed in greatest abundance during a single month of the count (with the greatest number observed at one time in parentheses) were House Sparrow (17 in December), American Tree Sparrow (16 in December, 15 in February, and 12 in January), American Goldfinch (12 in February), Mourning Dove (Zenaida macroura) (11 in January), and Brown-headed Cowbird (Molothrus ater) (10 in February).

Blue Jay
The most abundant species based on average over the four months of the count were American Tree Sparrow (12.5), House Sparrow (9.25), American Goldfinch (8.75), and Dark-eyed Junco (7.75). 

Downy Woodpecker (female)
The number of individuals of the most abundant species continued to decrease from those reported in the past few years; two years ago we had four species that averaged over 10 individuals during the four months of the count.
 
Hairy Woodpecker (male)
Just as in 2012-2013, one of our most notable observations during this count was a lack of White-crowned Sparrows (Zonotrichia leucophrys).  The decline in number of individuals of this species at our feeders, from an average of 3.0 over the count period in 2008-2009 to an average of 0.25 over the count period during the past two years, may be indicative of their shifting population, as reports show that their numbers are increasing in parts of the continent but decreasing in other parts.
  
Red-bellied Woodpecker (male) (top) and Black-capped Chickadee (bottom)
Another notable observation in 2013-2014 was the presence of a Fox Sparrow (Passerella iliaca) during three of the four months of the count.  This was only the second time during a Winter Bird Feeder Count that this handsome reddish brown and gray bird has made an appearance at our feeders (also present during the 2010-2011 count), and on days when it was present it stuck around almost the entire day.

Fox Sparrow (top) with Dark-eyed Junco (bottom)
2013-2014 Winter Bird Feeder Count Species List
Mourning Dove
Red-bellied Woodpecker
Downy Woodpecker
Hairy Woodpecker (Picoides villosus)
Blue Jay
Black-capped Chickadee
Tufted Titmouse
White-breasted Nuthatch
European Starling (Sturnus vulgaris)
American Tree Sparrow
Fox Sparrow
Song Sparrow
White-crowned Sparrow
Dark-eyed Junco
Northern Cardinal
Red-winged Blackbird (Agelaius phoeniceus)
Common Grackle (Quiscalus quiscula)
Brown-headed Cowbird
House Finch
American Goldfinch
House Sparrow

26 February 2012

2011-2012 Winter Feeder Count Results

Each winter, Lindsay and I participate in the Indiana Audubon Society Winter Feeder Bird Count, which takes place the 20th to 25th of November, December, January, and February.  You can see our reports on surveys from previous years here and here

American Goldfinches and House Finches on our platform feeder in November 2011.
Our species counts during each month and overall were similar to those in the past two years.  This year, we had 18 species in November, December, and January, and 17 species in February.  We tallied 21 species at our feeders during the count periods in 2011-2012; our complete list is included at the end of this post.

Pine Siskin eating black oil sunflower seeds in December 2011.  We only saw Pine Siskins at our feeders during the December count period in 2011-2012.
Species observed most frequently (those present during all four count periods) in 2011-2012 were Mourning Dove (Zenaida macroura), Red-bellied Woodpecker (Melanerpes carolinus), Downy Woodpecker (Picoides pubescens), Hairy Woodpecker (Picoides villosus), Blue Jay (Cyanocitta cristata), Black-capped Chickadee (Poecile atricapillus), Tufted Titmouse (Baeolophus bicolor), White-breasted Nuthatch (Sitta carolinensis), American Tree Sparrow (Spizella arborea), White-crowned Sparrow (Zonotrichia leucophrys), Dark-eyed Junco (Junco hyemalis), Northern Cardinal (Cardinalis cardinalis), House Finch (Carpodacus mexicanus), American Goldfinch (Spinus tristis), and House Sparrow (Passer domesticus). Species observed in greatest abundance during a single count period (with the greatest number observed at one time in parentheses) were American Goldfinch (29 in December, 13 in February), Mourning Dove (28 in December), American Tree Sparrow (24 in February, 18 in January, and 16 in December), House Sparrow (18 in December and 17 in January), European Starling (Sturnus vulgaris, 14 in February), Northern Cardinal (13 in February), and Dark-eyed Junco (13 in December).  The most abundant species based on average over the four count periods were American Goldfinch (15.75), American Tree Sparrow (15.25), House Sparrow (10.75), and Mourning Dove (10.5).

White-crowned Sparrow, a reliable species for us in winter, on our platform feeder in February 2012.  Unfortunately, we only saw one individual during each of the four count periods in 2011-2012.
Although overall it has been a warm winter, the temperature range during the count period was comparable to in previous years, with a low temperature of 6 degrees Fahrenheit in January and a high temperature of 55 degrees Fahrenheit in November.

Male Red-bellied Woodpecker at a suet feeder in February 2012.
Our biggest highlight of the 2011-2012 count came in December, when Lindsay saw a Gray Catbird (Dumetella carolinensis) at our feeders on the first day of the count period.  Most Gray Catbirds migrate south of here for the winter, but a few stick around, and we were lucky enough to find one at our feeders.

A sign of the coming spring, a male Red-winged Blackbird, on our platform feeder in February 2012.
2011-2012 Winter Bird Feeder Count Species ListMourning Dove
Red-bellied Woodpecker
Downy Woodpecker
Hairy Woodpecker
Northern Flicker (Colaptes auratus)
Blue Jay
Black-capped Chickadee
Tufted Titmouse
White-breasted Nuthatch
Gray Catbird
European Starling
American Tree Sparrow
White-crowned Sparrow
Dark-eyed Junco
Northern Cardinal
Red-winged Blackbird (Agelaius phoeniceus)
Brown-headed Cowbird (Molothrus ater)
House Finch
Pine Siskin (Carduelis pinus)
American Goldfinch
House Sparrow

15 January 2012

Some Common Winter Feeder Birds

On Saturday morning, Lindsay and I joined Brian Miller, Vic Riemenschneider, and Sam and Abby Lima at the South Bend-Elkhart Audubon Society wildlife sanctuary for a feeder watch.  Even though the birds we saw are common winter feeder birds, it was enjoyable to spend time watching bird behavior in more detail than I normally do.  We tallied 18 species, including Mourning Dove, Red-bellied Woodpecker, Downy Woodpecker, Hairy Woodpecker, Blue Jay, American Crow, Black-capped Chickadee, Tufted Titmouse, White-breasted Nuthatch, Brown Creeper, Carolina Wren, American Tree Sparrow, Song Sparrow, Dark-eyed Junco, Northern Cardinal, House Finch, American Goldfinch, and House Sparrow.

Female Red-bellied Woodpecker
Red-bellied Woodpeckers (Melanerpes carolinus) are found throughout the eastern half of the United States.  It is always fun to watch this species at feeders because as they approach, they remind me of a big, goofy chocolate lab running up to a kid for a treat... they seem somewhat uncoordinated, fearless, and unaware of any surroundings as they plop down on the feeder; smaller birds tend to disperse when Red-bellied Woodpeckers land on feeders.  The bird in the photograph above is a female, whereas that in the photograph below is a male.  The easiest way to tell them appart is to look at the red on the head.  On the female, the red color is only on the nape (with gray or off-white on the forehead), whereas the male has the red coloration nearly all the way to the beak.

Male Red-bellied Woodpecker
Hairy Woodpeckers (Picoides villosus) and Downy Woodpeckers (Picoides pubescens) are often confused with one another.  In both species, the males have a red patch on the back of the head; females lack this red patch.

Male Hairy Woodpecker
The best field identification characteristic to tell the difference between these two species is not exactly evident in the photographs above and below.  Hairy Woodpeckers have a beak that is as long as the profile of the head, whereas the beak of the Downy Woodpecker is shorter than the profile of the head.  At the base of the beak, Downy Woodpeckers have a "conspicuous" tuft of feathers, whereas this tuft is inconpicuous on the Hairy Woodpecker (this characteristic can be difficult to see).  The Hairy Woodpecker has a larger black shoulder mark than does the Downy Woodpecker, and the outer tail feathers are completely white on the Hairy Woodpecker (Downy Woodpeckers have dark bars on the outer tail feathers).  Hairy Woodpeckers are also larger overall (about the same size as a Red-bellied Woodpecker) than Downy Woodpeckers (about the size of an Eastern Bluebird).  The calls of the two species, while similar, can be used to distinguish the species.  The Hairy Woodpecker call is sharper and a bit higher pitched, and is described as peek.  The Downy Woodpecker call is more gentle and a bit lower pitched, and is described as pik.  Listening to the calls will probably allow you to tell the difference more easily.  Both species are found throughout most of North America.

Male Downy Woodpecker
The American Tree Sparrow (Spizella arborea) is truly one of our winter birds.  This species breeds on the tundra of northern Canada and Alaska but spends its winters throughout much of the continental United States.  One of the best places to find American Tree Sparrows in winter is in fields with an abundance of goldenrod (Solidago spp.).  You would think that a bird with "tree" in the common and latin name (arborea means "tree-like") would spend its time in trees, but this is not the case here.  Although sometimes found in shrubby areas, American Tree Sparrows spend much of their time on the ground.  The species was confusingly given the moniker American Tree Sparrow by the European settlers because they were reminiscent of the European Tree Sparrows from back home.  In addition to the rusty cap and eyeline, the strong white wingbars, and the bicolored bill, the other strong identifying characteristic of this species is the dark spot on the chest.

American Tree Sparrow
The next two species can be fun to watch because they characteristically spend very little time at the feeder and more time caching food to eat later.  These species also often are in small flocks together with Black-capped Chickadees.

Tufted Titmouse
The Tufted Titmouse (Baeolophus bicolor) is a small year-round resident of forests of eastern North America and northeastern Mexico.  The gray back, orange flanks, light belly, and black forehead on a bird with a small crest allow for an easy identification of this species.  The song of the Tufted Titmouse is a whistled peter-peter-peter, but this species produces lots of other sounds that can sometimes sound a bit like Black-capped Chickadee or Golden-crowned Kinglet.

White-breasted Nuthatch
Another fun bird to watch is the White-breasted Nuthatch (Sitta carolinensis), a species of open woods throughout the continental United States and ranging north into Canada and south into Mexico.  White-breasted Nuthatches spend much of their time upsided-down clinging to trees or feeders.  The nasal, party-horn-like call of this species allows identification without ever seeing the bird, though its call can sound a bit similar to that of the Red-breasted Nuthatch.  The gray back, black cap, white underside, and long thin bill all point towards identification as a White-breasted Nuthatch.  This species lacks the black eyeline of the Red-breasted Nuthatch and the black throat of the Black-capped Chickadee.

Steely stare from a White-breasted Nuthatch
Special thanks to Brian for setting up this outing, and to Vic for opening up the sanctuary for us.