I have long been fascinated with trying to tell one individual bird of the same species from another. When it comes to some species, the only way this is possible is when one bird has an unusual feather (e.g. color, feather, injury) that distinguishes it from others of its species. In other cases, birds of the same species may exhibit slight variations in their basic color patterns. For example, a few weeks ago I posted a blog that discussed a technique that allows an observer to identify one male rose-breasted grosbeak from another by the subtle differences in their red chevrons. A similar technique allows you to tell one blue jay from another.
The blue jay is undoubtedly one of our most easily recognized birds. All blue jays seem to appear exactly alike. However, if you take the time to study the black necklace-like pattern displayed across the bird’s throat, face, and nape, it becomes apparent that this pattern varies widely between blue jays. In fact, once you begin focusing on this feature, you will wonder why you never noticed these differences throughout the many years that you have been watching the comings and goings of blue jays in your backyard.
A quick way for you to appreciate this fact is to pull up a collection of blue jay photos on your computer. If you do, in a matter of seconds, it becomes apparent that each blue jay has its own unique black necklace.
If you photograph the blue jays visiting your birdbath and feeder, don’t be surprised if you discover you are hosting more blue jays than you ever realized.
If you are looking for a great way for you and your family to become citizen scientists without leaving your home, take part in the 2019 edition of the Great Christmas Bird Count. All you have to do is record the birds you see in as little as 15 minutes at least once during the four-day count period. This year the Great Backyard Bird Count begins Friday February 15 and runs through Tuesday February 19.
The Cornell Laboratory of Ornithology, National Audubon Society, and Bird Studies Canada sponsor the count.
The count enables biologists to monitor the status of bird populations in the United State and abroad. These data are also proving invaluable in assessing the impacts of weather and habitat change on bird populations.
The scope of this survey has changed dramatically since its inception in 1998. What was initially a survey conducted in North America, the project has gone global. This past year 214,018 volunteers from more than 100 countries took part in the count.
As you might expect, most of the checklists (108,921) submitted in 2018 were sent in from the United States. However checklists were turned in from countries such as Columbia, Canada, the United Kingdom, Spain, Portugal, Costa Rica, and Mexico to name but a few.
When to checklists were tallied it was determined 6,310 species of birds were seen. Remarkably, these birds represent more than half of the species of birds in the entire world.
Here is the list of the ten species whose names appeared most often on checklists in 2018: northern cardinal (48,956), dark-eyed junco (43,742), mourning dove (43,412), American crow (40,959), blue jay (37,549), downy woodpecker (36,495), house finch (34,766), black-capped chickadee (21,942), and house sparrow (31,884), and European starling (28, 683).
Interestingly, the most numerous species seen last year was the snow goose. Some 4,957,118 of the large white and black waterfowl were sighted.
If you would like to participate in the Great Backyard Bird Count, the first thing you need to do is decide how many areas you want to survey. It is totally up to you where and how many areas you wish to conduct your count efforts. Most folks simply count the birds they see in their backyards. Others survey several areas. Next, go online and register for this year’s count. I should note the count is free.
The only stipulation is you survey a spot for a minimum of 15 minutes. A count can be conducted at a location only once or every day during the four-day count period.
After you complete a count, you simply submit your data online (birdcount.org). After I submit my data, I like to pull up the map that displays the data collected throughout the state in real-time.
Since you only submit data for the birds you can identify, practically anybody can take part in the survey.
For details concerning how to register and conduct your count(s) visit the Great Backyard Bird Count website.
I sincerely hope you will take part in this year’s count. If you do, you will be birding with a purpose and have a lot of fun along the way.
At some time or another, practically all of us have tried to photograph wildlife through the windows of our houses. However, in far too many cases, when we pull up the images on our computer we are not happy with their quality.
To say the least, photographing wildlife through windows is a difficult proposition. Here are a few tips that just might help you take better pictures through your windows.
It goes without saying that the best pictures are made through the highest quality window glass. If your windows appear wavy, you are doomed to failure.
If the window glass in your house shows little distortion, before taking any photographs thoroughly clean them.
Then when a photo opportunity suddenly presents itself, shut off the lights in the room where you are standing. This accomplishes two things. First, it cuts down on reflections. In addition, I have found that I can move about a darkened room more easily without frightening the wildlife I am trying to photograph.
Even then, as you get into position to take a photo, move very slowly, and avoid any quick movements.
If possible, try to take your pictures from a spot where the camera lens is parallel with the glass.
Once you get into position, hold the camera lens as close to the glass as possible.
If you are going to use a flash, place it close to the glass also.
Refrain from taking pictures when the sun’s rays are streaming directly toward your window.
These tips may help you take better backyard wildlife shots. However, it has been my experience that I can consistently take better pictures when I raise the window just high enough to focus on my subject through this opening. When I am able to do this, I know the odds of my taking a picture are much better.
If you are looking for the perfect gift for a family member or friend that enjoys watching backyard wildlife, I can think of no better Christmas gift for them than a pair of binoculars. Here are a few tips that will help you select a pair that will add immeasurably to their enjoyment of the butterflies, birds, mammals and other wildlife that inhabit their backyard.
If they have never used a pair of quality binoculars, they are in for a real treat. The crisp, clear images seen through a pair of binoculars that are matched to their personal needs are so superior they will be astounded.
Selecting a pair of superior binoculars is not as difficult as it may seem. Once you know what to look for, it is as easy as starting a lawn mower.
When buying a pair of binoculars here are the features you need to keep in mind: cost, eye relief, field-of-view, brightness, weight, size, and focusing distance.
One of the first things you will notice when you pick up a pair of binoculars is two numbers such as 8.5×50. The first number indicates the magnification or power. The second number refers to the size of the objective lenses. The objective lenses are the two large lenses found at the front of the binoculars. These lenses are measured in millimeters. All things being equal, the larger the objective lens, the more light passes into the binoculars. This is especially important when trying to view wildlife in subdued light.
Some of the more common powers that you will find are 7.5, 8, and 10. Keep in mind the higher the magnification the harder it is to hold the binoculars steady. If the person you are buying the binoculars for does not have a steady hand, stay away from 10 power binoculars.
Field-of-view (FOV) simply refers to how large an area you can see at 1,000 yards. For backyard wildlife viewing, binoculars with a narrower field of view are usually best.
One of the most frequently overlooked properties of a pair of binoculars is eye relief. Eye relief refers to the distance between the eyepiece and your cornea when you are looking through the pair of binoculars. If your gift recipient wears glasses, buy a pair that has an eye relief of at least 15. The higher the number, more eye relief is provided. Consequently, binoculars with an eye relief of 22 offers more eye relief than a pair with 15.
If person that will be using the binoculars likes to look at birds or butterflies through a pair of binoculars without an eye relief of at least 15, he or she will be constantly removing their glasses to get the best view.
The key factor in determining the brightness of a pair of binoculars is the diameter of the exit pupil. You can determine the relative brightness of a pair of binoculars by dividing the size of the objective lens by the power. For example, if you are computing the brightness of a pair of 10×50 binoculars, when 50 is divided by 10 you end up with an exit pupil of 5mm. All things being equal, binoculars with the largest exit pupils are bright than those with smaller exit pupils.
Remember though, when the exit pupil exceeds the diameter of your eye pupil; there is no advantage in purchasing an instrument with a larger exit pupil. You should also be aware that when most of us reach the age of 40, buying a pair of binoculars with an exit pupil above 5mm is simply a waste of money.
I would also recommend that you purchase a closing focusing binocular. This will enable you to look to focus on butterflies and other critters six feet or less away. Some binoculars allow you to focus at objects only 4.5 feet away. This is a must, especially if somebody wants to enjoy looking at all kinds of wildlife.
Keep in mind, if you buy them a pair of close focusing binoculars, they will be able to look at butterflies, anoles, chipmunks, and birds with the same instrument.
Binoculars with the finest optics range in price anywhere from $300 to $1,000 or more. Many of these instruments come with lifetime warrantees. However, if you do not want to spend that much money, good quality binoculars can be purchased for far less. Shop around, go to a birding supply store or other establishments that deals in optics and look at several pairs; compare their size and weight. If the clerk is knowledgeable, she or he can help you select just the right pair for your friend or relative. You can also go online and see what is available. Companies that deal in a number of brands will often give you unbiased evaluations of what are the best choices in your price range. One such company is Eagle Optics.
Wherever you buy a pair of binoculars, make sure that you can return them if they do not fit the needs of your relative or friend. I know of some companies will you to do for 30 days.
Once the person receiving your gift begins using a pair of quality binoculars, a whole new world will open up to them. No longer will all butterflies appear the same. They will be able to distinguish an American lady from a painted lady and an eastern phoebe from a titmouse. They will begin spotting the tiny, colorful warblers that feed atop their oak trees in the springtime.
Indeed, in short order, they will find their binoculars as indispensable as the nesting boxes, plants, water, cover, and feeders that attract wildlife to their backyard. Your gift will truly keep on giving years to come.