Northwest Gold Coast

Bird Guy, Chris Caviezel

Winter is here in most places.  Birds need food to stay warm so be sure to feed the birds first thing in the morning after a cold night or late in the day just before a cold night.  Birds will need more calories to stay warm and consequently your birds that come to your feeders, Cardinals, Chickadee, Nuthatches and House Finches will want Black-Oil Sunflower seeds — its like an electric blanket for the birds!

Click to read a full article on how birds stay warm in the winter.

And get more tips from the Bird Guy, Chris Caviezel when you sign up for his newsletter.

Tags: Northwest Wildlife by Chris Caviezel
No Comments »

As a warm blooded creature, a passerine (songbird) has a body temperature that varies between 102 degrees Fahrenheit and 112.3 degrees Fahrenheit. During periods of extreme cold, its temperature may drop drastically. How does a bird control its body temperature so it won’t freeze when the ambient temperature plummets below the freezing mark? How does it find warm places to sleep?

A bird’s coat of feathers forms its primary defense against cold. Passerines’ feathers are so thick that very little skin is exposed to air, which prevents body heat from escaping. A system of muscles connected to each feather enables a bird to raise or lower its feathers. When the environmental temperature falls, a bird “fluffs” its feathers much the same as we “fluff” a down jacket increasing the air spaces. The more air spaces, the better the insulation.

Birds have other means of retaining heat. Sometimes a bird draws one leg up into its belly feathers. Ground feeding juncos, sparrows, and some finches lower their bodies to ground level to cover their feet with feathers. You also may see a bird with its head and bill tucked back into its scapulars, or feathers along its shoulder.

A bird can increase its body heat by stimulating muscle activity through shivering. A bird that shakes all over is revving its engine to stay warm.

Some birds – bluebirds and chickadees, for example- sleep in groups on extremely cold nights, transferring heat from one body to the next. In some instances, birds find tree cavities or nest boxes for this sort of group sleeping.

Some species – such as swifts, nighthawks, and hummingbirds – reduce their energy requirements by going into a state of torpor. This lowers their body temperature by several degree to a level near that of the air.

Most birds that come to our backyard feeders stock up on seed and suet shortly before retiring for the night. This fuel stokes their fire so to speak.

About the author: Chris Caviezel loves birds and operates two websites related to caring for wild birds: www.birdfeedersonly.com and www.hummingbirdsonly.com.

Tags: Northwest Wildlife by Chris Caviezel
Comments Off

As winter approaches do you leave the screen windows on? Of course not! Likewise it’s common sense that if we want our feathered friends to use (and benefit from) the nest boxes we have in our yards, we must winterize them.

First clean out the season’s nests that may have gotten damp, filthy or infested with blowflies or lice. Then, layer 3-4″ of clean dry meadow grass in the bottom of each house. Wood shavings can work well too, but don’t use sawdust as it retains moisture when wet.

Second, plug the air vent holes (and drainage holes) in your houses with flexible weather strip. You can get weather strip (Moretite is one brand) in most home/hardware center stores. It comes in a putty- like cord that you simply press in with your fingers and it comes out easily in the spring.

Who will use your house if properly winterized? Downy woodpeckers seem to be one of the most common winter tenants, even though they prefer to carve their own nest cavity. You can tell they have visited when you find some of the feathers they shed. Their feathers are long with very flimsy shafts with gray barbs and a grayish white tip. Chickadees and titmice will sometimes leave droppings and a few feathers behind while bluebirds leave a few regurgitated seeds. It’s not uncommon for 6-9 bluebirds to emerge from one box. Nuthatches and Carolina Wrens are some other common visitors to winterized homes.

If you want to provide even more winter housing, check out  the Winter Roosts at BirdFeedersOnly.com!

Tags: Northwest Wildlife by Chris Caviezel
Comments Off