Citizen science in my backyard!

Gray-headed catbird DK7A8986© Maria de Bruyn resIt’s been a while since I’ve blogged – not for lack of ideas and photos but due to a dearth of time and energy that was absorbed by multiple troubles with a few cool happenings in between. But now I’m back with some new observations about the beauty and happenings of interest in my natural world and I hope to share some wildlife sightings on a regular basis again.

One activity that I have managed to fit in amid the other goings-on was enrollment in two new (for me) citizen science projects for the Smithsonian Institute. I’m participating in an eMammal project run by the North Carolina Museum of Natural Science and in a multi-year observational study of some common birds. The mammal project is time-limited, so I will report on that in about a month’s time.

Northern mockingbird DK7A8859©Maria de BruynThe bird project will involve tracking visits to my yard by banded birds for several years to come. The target species include American robins (Turdus migratorius), Carolina chickadees (Poecile carolinensis), Carolina wrens (Thryothorus ludovicianus), house wrens (Troglodytes aedon), gray-headed catbirds (Dumetella carolinensis), Northern cardinals (Cardinalis cardinalis) and Northern mockingbirds (Mimus polyglottos, at the right), all of which come to my yard. Song sparrows are the 8th target species but I haven’t seen them at my house. However, I discovered that there is a great crested flycatcher in my trees, although I’ve never seen him (or her) either, so who knows if one will come in the future? In any case, the target birds can live from about 6-10 years on average, so I’ll have an ongoing activity for as long as my eyesight remains reasonable!

bird banding IMG_3291© Maria de Bruyn resmist net IMG_3290© Maria de Bruyn

So how does the bird banding proceed? We (the bird bander and I) set up one 12-foot and one 6-foot mist net in two parts of the yard, after the bander laid out her equipment for the banding process. Within a very short time, we caught three birds in the large net! The first was a gray-headed catbird that I recognized (photo above), because he had molted all his tail feathers at once and looks a bit odd with no tail. This bird, whom I have named Corey, has been the most vocal catbird at my feeders and he was extremely vocal about having been caught as well.

gray-headed catbird IMG_3294© Maria de Bruyn bird banding IMG_3295© Maria de Bruyn

After being disentangled – very carefully – from the net, he was put in a bag while the bander got the other two birds out of the net. Corey was measured, weighed, and banded with a combination of aluminum and colored bands. Sex was determined (I now know he is a he!) and then he was let go.

gray-headed catbird IMG_3301© Maria de Bruyn bird banding IMG_3304© Maria de Bruyn res

Northern cardinal IMG_3311© Maria de Bruyn resBird 2 was a beautiful male Northern cardinal, who appeared to have good fat reserves. He was a bit vocal and bit the bander to show his displeasure at the treatment he was receiving.

Bird 3 was a male American robin. Sex was determined partly by looking at the cloacal region (outside breeding season, other markers besides brood patches and this area are examined). If a bander is unsure of the sex, this is also marked on the data sheet. The robin was more sedate during handling than his predecessors.

 

American robin IMG_3314 © Maria de Bruyn resAmerican robin IMG_3315© Maria de Bruyn res

The house wrens had been calling loudly during the banding and flitted about in the trees and to the feeders,but they always flew just above the nets and were not caught. A male Carolina wren with a nice eye stripe did not escape.

house wren DK7A4794© Maria de Bruyn Carolina wren IMG_3316© Maria de Bruyn

American crow IMG_3359© Maria de BruynThe chickadees and Northern mockingbird flew about but did not really come too close to the nets. Non-target species were at or near the feeders, too, such as courting bluejays, an American crow (Corvus brachyrhynchos, right) who came to eat jelly and take some apple to his mate, downy woodpeckers, white-breasted and brown-headed nuthatches, a house finch, Eastern towhees and a male cowbird.

red-bellied woodpecker IMG_3344© Maria de Bruyn resOther non-target birds flew into the large mist net, however, such as a brown thrasher, a tufted titmouse, a red-bellied woodpecker (Melanerpes carolinus, right), a chipping sparrow (Spizella passerina), a female common yellowthroat (Geothlypis trichas, below) and a common grackle. I’d not seen these birds up so close before, so that was really a nice experience.

Common yellowthroat IMG_3339© Maria de Bruyn res

 

bird banding IMG_3340© Maria de Bruyn resTo get more target species, a loudspeaker that played bird calls and some model birds were placed in the grass by the largest net. Eventually, two more catbirds were caught – with other catbirds in a nearby tree puffing themselves up to show their shared distress. These were the first catbirds banded for the project so far, so that was a nice way to end the exercise.

Cope's tree frog IMG_3293© Maria de Bruyn resA tour of the yard to see if there were any nests that could be followed for the Nest Watch project revealed a couple wren nests in boxes that were built up so high it was not possible to see if they had eggs in them. The bluebirds’ nest has five eggs that I will follow through fledging (hopefully); a catbird nest is too high up for me to see how many eggs she is sitting on but I will watch for her fledglings, too. And a Cope’s tree frog (Hyla chrysoscelis) had taken up residence in the nest box that the downy woodpecker uses to rest at night. The wrens had begun building a nest in that box last night and the frog was gone this afternoon.

The banding took place yesterday in the morning and in the afternoon, the banded birds had not returned. I wonder how long it will take most of these individuals to come again. Corey already returned this afternoon, instantly recognizable not only because of his very short tail feathers growing in but because of the red and silver bands on his little legs. I was so glad to see he was none the worse for wear!

Dining out in winter

cardinal and crowd DK7A9445© Maria de Bruyn resIn the spring, summer and fall, when birds have insects and other favorite foods available, many of us see moderate numbers of avian visitors at our feeders — although there are always exceptions, such as parents looking for easy meals to satisfy the voracious appetites of their offspring. Come wintertime, though, we may have whole flocks of different species flying busily to and fro to take food from our feeders.

 

tufted titmouse IMG_0635© Maria de BruynOur avian friends need to eat more, and more often, in autumn and winter to ensure that they can gain sufficient fat reserves to see them through the cold weather. Some of the smallest birds will consume up to 30% of their body weight. Nuts are a favored food for tufted titmice (Baeolophus bicolor).

cedar waxwing IMG_7967 ©Maria de Bruyn 2

In the autumn, there are still many berries available and these are a popular food. Birds that tend to eat insects much of the year will switch to berries in winter since their prey has died, is dormant and awaiting rebirth in larval form, or otherwise scarce. The berries of honeysuckle (Lonicera), privet (Ligustrum, an invasive plant) and other plants are popular foods for species such as cedar waxwings (Bombycilla cedrorum).

 Holly berries (Ilex opaca) are a favorite for American robins (Turdus migratorius).

American robin IMG_3302 © Maria de Bruyn American robin IMG_0326©Maria de Bruyn res

Pine siskin IMG_6226©Maria de Bruyn resEven when much of the vegetation has dried up, seeds and seed pods remain. Pine siskins (Spinus pinus), downy woodpeckers (Dryobates pubescens) and American goldfinches (Spinus tristis) will feast on the seeds found in the pods of honeysuckles and trumpet vines (Campsis radicans).

 

American goldfinch IMG_6251 ©Maria de Bruyn res Downy woodpecker IMG_9184M de Bruyn

In some cases, dried leaves and the remains of caterpillar tents form clumps that attract tufted titmice and white-throated sparrows (Zonotrichia albicollis) as they search for sustenance.

tufted titmouse IMG_9714© Maria de Bruyn res white-throated sparrow DK7A6171© Maria de Bruyn res

Pine siskins will eat moss growing on tree trunks. Other birds search the vegetation alongside ponds, like this song sparrow (Melospiza melodia).

pine siskin IMG_7546©Maria de Bruyn ressong sparrow IMG_6959© Maria de Bruyn (2) res

The seed pods of my crepe myrtle trees (Lagerstroemia) are a magnet in winter for various avian species such as pine siskins, white-throated sparrows, red-winged blackbirds (Agelaius phoeniceus) and Northern cardinals (Cardinalis cardinalis), as well as Eastern gray squirrels (Sciurus carolinensis).

white-throated sparrow IMG_2653©Maria de Bruyn respine siskin IMG_8177 ©Maria de Bruyn

Northern cardinal IMG_4887©Maria de Bruyn resred-winged blackbird DK7A7754© Maria de Bruyn res

Eastern gray squirrel IMG_3547© Maria de Bruyn res Eastern gray squirrel IMG_3528© Maria de Bruyn res (2)

Various species of smaller birds will flock together in winter, both for purposes of safety and help in finding food. As the season progresses, the supply of seeds, pods and berries diminishes. In addition, the variety of natural plants has often decreased in urban areas as homeowners remove “weeds” from their yards. Wildlife organizations therefore encourage bird lovers to add native plants to their property, especially those that attract birds, and to provide extra food through feeders.

white-throated sparrow IMG_1608© Maria de Bruyn ruby-crowned kinglet IMG_1635© Maria de Bruyn res

Northern mockingbird DK7A4279© Maria de Bruyn resMaking available mixed seeds, oil-rich sunflower seeds and suet (traditional or vegetarian made with vegetable shortening) will help the birds like this Northern mockingbird (Mimus polyglottos) keep up their energy. And it’s a good idea to keep those feeders filled — did you know that many songbirds are able to collect food in a special storage pouch within their esophagus so that they can then digest it after dark and overnight? This may help account for the fact that certain birds come back to the feeders over and over again within a short span of time.

 

The area where I live has had a long winter, with alternating days of relatively high temperatures and then very cold days and nights. Crocuses, daffodils and tulips are beginning to emerge in my gardens despite snow and ice and trees and shrubs are beginning to bud, giving the Eastern gray squirrels and house finches (Haemorhous mexicanus) a new source of food. I think that both the birds and I will be happy when spring arrives and stays! In the meantime, I’ll keep the feeders filled.

Eastern gray squirrel DK7A7410© Maria de Bruyn res House finch DK7A0286© Maria de Bruyn res

My friends, the ruby-crowned kinglets!

ruby-crowned kinglet IMG_8776© Maria de Bruyn resAs I mentioned in November, ruby-crowned kinglets (Regulus calendula) are one of my favorite bird species. These tiny, yellowish bundles of energy are fascinating to watch as they perch on twigs, hover in mid-air by feeders and branches, and generally look delightful when they stop to catch a breath for a minute.

Adjusting your camera to be able to photograph them with the best speed and lighting can be quite challenging as their constant motion leads them in and out of the sun and above and below branches.

ruby-crowned kinglet IMG_9428© Maria de Bruyn ruby-crowned kinglet IMG_9419© Maria de Bruyn  ruby-crowned kinglet IMG_9377© Maria de Bruyn resruby-crowned kinglet IMG_9406© Maria de Bruyn res

ruby-crowned kinglet IMG_4734© Maria de Bruyn resOn a rainy day, they may sit still for a tiny bit longer but their flight is not impeded though they may look waterlogged.

This has been a good autumn and winter for my being able to photograph these adorable avians, not only in my yard at the feeders but also in venues such as the Jordan Lake woods, Mason Farm Biological Reserve and Sandy Creek Park. This blog will focus on some of the portraits I’ve been able to capture.

 

 

ruby-crowned kinglet IMG_0378© Maria de Bruyn resWhen they are flying around rapidly, you could mistake them for first-year, less brightly hued blue-winged warblers (Vermivora cyanoptera). That happened to me in South Carolina where I thought I had gotten a shot of a blue-winged warbler and instead saw a kinglet in the photo.

ruby-crowned kinglet IMG_0271© Maria de Bruyn res

ruby-crowned kinglet IMG_0272© Maria de Bruyn

The kinglets’ yellow-olive color, white wing bars, broken white ring around their eyes and fluttering flight help identify them. Very occasionally, you catch sight of the red crown or get a peek at a couple of the normally hidden red feathers.

ruby-crowned kinglet IMG_8791© Maria de Bruyn 2ruby-crowned kinglet IMG_4174 ©Maria de Bruyn res signed

The Latin species name, which means little king, has led to a number of “royal” terms for a group of kinglets: a castle, a court, and a princedom. My favorite, however, is a dynasty – a grand description for a collection of these tiny fliers.

ruby-crowned kinglet IMG_8747© Maria de BruynI think I might have a particular fondness for birds with black or dark legs and yellow feet. I love snowy egrets (Egretta thula) with their large feet resembling yellow rubber gloves and melt at the sight of those dainty kinglet feet.

 

 

It’s amazing to think of these small birds migrating to North Carolina from as far North as Canada and Alaska. Just think about how many wing-beats and how much energy this demands of these birds! I’m glad they make the trip though!

ruby-crowned kinglet IMG_0409© Maria de Bruyn res2 ruby-crowned kinglet IMG_3539©Maria de Bruyna”?

ruby-crowned kinglet IMG_5641©Maria de Bruyn resI hope you have found these photos as cute as I did – have a great day!

A bedraggled sort of day

Carolina wren IMG_4876© Maria de Bruyn resFirst, let this lovely Carolina wren (Thryothorus ludovicianus) and me wish you – fellow nature lovers and blog readers – all the best as we look to the future in this year of 2015! May your minor disappointments (life is not always rosy) be compensated by love, laughter, health and happiness in abundance!

 

Yesterday may have been a minor disappointment for the wildlife here.Hermit thrush IMG_3106© Maria de Bruyn res On Sunday, it was very cold for North Carolina standards. Together with two other Audubon Society volunteers, I was standing at a local lake in 15°F (-9.4°C) weather waiting to see if any bald eagles flew by for inclusion in the quarterly Eagle Count. We didn’t see any, although this lovely hermit thrush (Catharus guttatus) was nearby eating berries.

Monday was warmer but EXTREMELY wet! Two of my cats awakened me at 5 a.m. and I could hear the rain coming down in a veritable deluge. I wondered if I would be able to see the road to drive for an appointment later that morning (it did let up, thank goodness) and also wondered how the birds and animals were keeping in this unpleasant weather.

Northern cardinal IMG_4462© Maria de Bruyn res

Northern cardinal IMG_4049© Maria de Bruyn res

 

 

 

When it’s cold, the birds fluff up their feathers to trap air pockets by their bodies; this helps they retain body heat and stay warmer. Heavier wet feathers don’t seem to fluff well, though. On the other hand, birds’ feathers are covered with an oily or waxy substance that helps water run off, thereby keeping their bodies drier. Those feathers don’t necessarily look pretty though. Many of the birds were indeed looking bedraggled, some to a greater degree and others just a bit like these Northern cardinals (Cardinalis cardinalis).

red-bellied woodpecker IMG_5005© Maria de Bruyn resIt didn’t seem that many birds were hiding in vegetation to get out from under the downpour. Nope – they all appeared to be very hungry and anxious red-bellied woodpecker IMG_4948© Maria de Bruyn resfor a meal like this red-bellied woodpecker (Melanerpes carolinus), who was scolding me for being so close to the feeders!

white-tailed deer IMG_4092© Maria de Bruyn resA few white-tailed deer (Odocoileus virginianus) were also wet and hungry, including two visitors to my yard that I had not seen before. They were two bucks, one of whom must have been hit by a car. One of his antlers was broken off and he was hopping along holding up his left hind leg, which had obviously been injured.

 

 

 

white-tailed deer IMG_4063© Maria de Bruyn res white-tailed deer IMG_4001© Maria de Bruyn res

white-tailed deer IMG_4055© Maria de Bruyn resA young doe, who visits regularly, stopped for some bird seed, as did the other buck whose antlers had been shed. Their thick hair was coated in raindrops.

The Eastern gray squirrels (Sciurus carolinensis) can curl their tails up over their backs as a kind of natural umbrella, both on the ground and in trees. This individual, who may have been injured by a predator and escaped, enjoyed some apple – first on the ground and then later in the tree away from the blue jays that were hopping around it.

Eastern gray squirrel IMG_4325© Maria de Bruyn res Eastern gray squirrel IMG_4334© Maria de Bruyn res

Some of the birds definitely looked more presentable than other. The three visiting mockingbirds (Mimus polyglottos) were sleek and beautiful, one using its long tail tobalance as it plucked meal worms from a feeder designed for somewhat smaller birds.

Northern mockingbird IMG_4503© Maria de Bruyn res Northern mockingbird IMG_4467© Maria de Bruyn res

The dark-eyed juncos (Junco hyemalis), Eastern towhees (Pipilo erythrophthalmus) and chipping sparrows (Spizella passerina) looked in fine shape, too.

dark-eyed junco IMG_4802© Maria de Bruyn res dark-eyed junco IMG_4729© Maria de Bruyn res

Eastern towhee IMG_4924© Maria de Bruyn res chipping sparrow IMG_4817© Maria de Bruyn res

The bluebirds (Sialia sialis) varied in appearance; a couple looked groomed but wet, while a couple others looked a bit disheveled.

Eastern bluebird IMG_4587© Maria de Bruyn res Eastern bluebird IMG_4588© Maria de Bruyn res

pine warbler IMG_4569© Maria de Bruyn resThe pine warbler (Setophaga pinus) – usually among the more handsome garden birds – unfortunately looked a sorry sight. Fortunately, when the rain ends, he’ll be able to shake that water off and get back to looking like one of the handsome fellas of the avian neighborhood!

pine warbler IMG_4618© Maria de Bruyn

 

pine warbler IMG_4842© Maria de Bruyn res

ruby-crowned kinglet IMG_4777© Maria de BruynThe ruby-crowned kinglet’s (Regulus calendulabrown-headed nuthatch IMG_4409© Maria de Bruyn res) oily feather covering seemed to do well in keeping the rainwater at bay, while the brown-headed nuthatch (Sitta pusilla) looked a bit more water-logged.ruby-crowned kinglet IMG_4741© Maria de Bruyn res

The tufted titmouse (Baeolophus bicolor) and Carolina chickadee (Poecile carolinensis) join me in looking forward to dryer and sunnier weather in a few days’ time!

tufted titmouse IMG_4350© Maria de Bruyn resCarolina chickadee IMG_4386© Maria de Bruyn res

A tiny bundle of yellow-feathered joy

ruby-crowned kinglet IMG_1148©Maria de Bruyn resWhile ospreys are one of my favorite large birds, the gorgeous ruby-crowned kinglet (Regulus calendula) has won my heart among my tinier feathered friends. Today I’m sharing some portraits of kinglets made the past couple months (in my yard and at Bolin Creek greenway in Chapel Hill, Jordan Lake woods, Sandy Creek Park in Durham).

One of the more active small birds (about 4 incruby-crowned kinglet IMG_5278© Maria de Bruyn reshes or 10-11 cm long), this kinglet is in almost constant motion, which makes getting good portraits a bit of a challenge. Despite this high level of activity, however, research has shown that the ruby-crowned kinglet only uses up to 10 kcal a day in energy. (Sometimes I think this holds true for me as well as the weight I want to lose just stays in place.)

 

ruby-crowned kinglet IMG_7952© Maria de Bruyn resTheir main diet consists of insects, including spiders, ants, wasps, beetles and aphids. They will also occasionally eat seeds, fruit and sap.

In addition, these kinglets – or at least the one that has been visiting my yard during migration the past couple years – also love suet a lot.

The ruby-crowned kinglet is known for its habit of flicking its wings as it forages for food; this helps it scare up insects (another bird that uses its wings in its hunt for food, like Northern mockingbirds and snowy egrets).

 

ruby-crowned kinglet IMG_4238© Maria de Bruyn resruby-crowned kinglet IMG_1631© Maria de Bruyn res

Ruby-crowned kinglet IMG_2653©Maria de Bruyn res

 

 

Though they don’t look as adept as hummingbirds, they sometimes hover to get at insects on the underside of leaves; they show this hovering behavior at feeders, too, before landing or flying off with a piece of suet snatched in flight..

ruby-crowned kinglet IMG_2760 MdB res2Most of the time, the male’s beautiful little red crest (which gives the species its name) remains hidden unless it gets excited about something.

ruby-crowned kinglet IMG_2762 MdB res2
Ruby-crowned kinglet 2 IMG_1149©Maria de Bruyn res

 

The ruby-crowned kinglet seems to me to have an expression of perpetual wonderment as it flits quickly from one spot to another. Its thin little legs with yellow-red feet help it land securely, on a branch, wire or feeder.

ruby-crowned kinglet IMG_0633©Maria de Bruynruby-crowned kinglet IMG_4076© Maria de Bruyn res

ruby-crowned kinglet IMG_0617©Maria de Bruyn resIn my pursuit of portraits, I’ve found that just as I think I have the bird in focus, it has disappeared from my viewfinder and I need to look up and around to locate it again..Given its diminutive size, one wouldn’t expect that the female lays up to 12 – twelve! – eggs in its nest, which is elastic and can expand as the brood grows. The male and female stay together until the chicks fledge at about 2 months and they will defend the nest against intruders.

ruby-crowned kinglet IMG_4075© Maria de Bruyn resruby-crowned kinglet IMG_4074© Maria de Bruyn res

ruby-crowned kinglet IMG_8928© Maria de Bruyn2 resSometimes, I hear the chittering call before I see the tiny wonder and only very rarely get to enjoy its longer song, which apparently varies according to region.

Ruby-crowned kinglets can live up to at least 4½ years (as shown by a banded bird). I don’t actually know if there is more than one bird visiting me or whether another will take its place in time.

ruby-crowned kinglet IMG_0102©Maria de Bruyn resWhat is very cool for me is that my visitor can become very friendly indeed. Last year, on two occasions, I was carrying a replenished suet feeder outside when the kinglet flew in to perch on it as I held the feeder in my hands – giving me a great close-up view. I look forward to seeing if the kinglet will favor me with an up-close-and-personal meeting again this coming winter!ruby-crowned kinglet IMG_0639©Maria de Bruyn res