Showing posts with label sitta canadensis. Show all posts
Showing posts with label sitta canadensis. Show all posts

Thursday, December 23, 2021

Red-breasted Nuthatch, in fresh plumage

A male Red-breasted Nuthatch in superb condition. This species molts anywhere from late summer through late autumn, and I'd say this one recently completed his judging by the finery of its feathers. He is in classic head-down posture and was avidly searching through lichens. Lichens are like food marts for bark gleaners, as they often hide a multitude of small invertebrates. I shot this yesterday in Pickaway County, Ohio.

Photo Notes: Nuthatches can be tricky to photograph, at least well. The smaller species tend to be hyperactive - the largest, White-breasted Nuthatch, is less frenetic in its movements - so it's generally a good idea to use a fast shutter speed. This image was made at f/8, 1/800, and ISO 200. When tracking a possible nuthatch subject, it's best not to blink - certainly don't take your eyes off it. You want to be ready for the brief lull in action, which will surely come. When I saw this nuthatch pause with its head and upper body away from the trunk with the blue sky as a bokeh, my camera's burst mode sounded like a machine gun, and I got my shot. Creepers, nuthatches, woodpeckers etc. usually don't look that great if the tree trunk is the entire backdrop. The subject looks flat and gets lost against the bark.

Old hat for seasoned photographers, I know, but if you are newer to bird photography, research back-button focusing. Separating the camera's shutter button from focusing functions is worth its weight in gold, especially with bird photography. On my Canon 5D IV (what I used for this shot) the "asterisk" center button on the back of the camera is my focus button. In AI Servo mode (another thing to research, if you aren't up on it) I just keep my thumb on the asterisk button, depressing it, and thus keep the subject in constant focus as I track it as it moves about. My forefinger hovers over the front shutter button like it is a gun trigger. When the time is right, I depress the trigger and fire away. Using back-button focusing in conjunction with AI Servo mode should net you many more keepers.
 

Sunday, November 15, 2020

Nature: Red-breasted nuthatches are a tough and energetic species

 

Lured by seeds, a red-breasted nuthatch perches on the lens of Jim McCormac's camera

Nature: Red-breasted nuthatches are a tough and energetic species

November 15, 2020

Nature
Jim McCormac

The white-breasted nuthatch is a familiar bird to many feeders of birds in our region. This small songbird is snowy white below and wears a coat of slate-blue above. A bold black stripe caps its head and neck. Most notable, perhaps, is its foraging tactics. Nuthatches creep along tree bark in the manner of woodpeckers. But they invariably head down trunks and limbs. Woodpeckers almost always head up the trunks.

Nuthatches visit feeders, and for most of the year – and some years, ALL year – we must make due with only white-breasted nuthatches. It is the only one of North America’s four nuthatches that is resident in Central Ohio.

But another nuthatch does occur in Ohio, the tiny red-breasted nuthatch. This northerner is a rare localized nester in the Hocking Hills, Mohican State Forest and scattered areas in extreme northeast Ohio. But most breed in the vast boreal forest that blankets the northernmost U.S. and much of Canada.

However, these tough little birds do pay us wintertime visits, at least some years. Red-breasted nuthatches are intimately associated with the coniferous trees that make up much of the boreal forest. In warm seasons, they glean plenty of insects, especially beetles, caterpillars, and spiders.

Come the long, cold northern winter, easily obtained insect bounty largely vanishes. Then, the nuthatches switch to a diet heavy in conifer seeds, particularly those of fir and spruce.

Roughly every other winter, the nuthatches stage major southward incursions, with some birds even reaching the Gulf Coast and Mexico. Snowbirds seeking a Floridian vacation? Not hardly. Elfin 10 gram red-breasted nuthatches are tough as nails.

In the accompanying photo, a red-breasted nuthatch perches on the end of my camera lens. They are not shrinking violets, although the seed I put atop the lens helped draw them in. I was standing in a forest in Algonquin Provincial Park in Ontario, Canada, and the temperature was about 5 below zero F.

It isn’t cold that drives the nuthatches south, it’s the lack of food. The conifer seeds that are their wintertime staple are cyclical, with big crops every two-three years. Alternate years are relative busts with few seeds produced.

As long as food is plentiful, red-breasted nuthatches ride out winter in the north woods. One or two evenings during my January 2018 Algonquin foray, it dipped to 20 below zero. The nuthatches were unfazed.

Southward incursions of boreal birds are known as irruptions, and birders down this way eagerly anticipate them. I began to hear occasional red-breasted nuthatches in August. By October’s end they were everywhere, statewide and far beyond, and were visiting my feeders along with the local white-breasted nuthatches.

If the pattern holds, it might be winter 2022-23 or 2023-24 before we again see many red-breasted nuthatches.

This isn’t the only boreal irruptive species. Pine siskin – a close relative of the American goldfinch – is another. Siskins are also appearing in large numbers. Watch for small brownish heavily streaked birds with a yellowish wash in the wings and tail. Siskins often travel in flocks, sometimes sizeable. Groups up to 200 have been recorded in year’s past. Anyone entertaining such numbers had better increase their thistle seed budget.

Far rarer irruptives include common redpoll, evening grosbeak, red crossbill, and white-winged crossbill. If any of these appear at your place, give me a shout, please.

Naturalist Jim McCormac writes a column for The Dispatch on the first, third and fifth Sundays of the month. He also writes about nature at www.jimmccormac.blogspot.com.