Cross-referencing a decade of Google searches and citizen science observations, researchers say they have identified which of 621 North American bird species are currently the most popular and which characteristics of species drive human interest. » Continue Reading.
Posts Tagged ‘Cornell Ornithology Lab’
In the first global test of the idea, scientists have found evidence that some woodpeckers can evolve to look like another species of woodpecker in the same neighborhood. The researchers say that this “plumage mimicry” isn’t a fluke – it happens among pairs of distantly related woodpeckers all over the world. » Continue Reading.
An estimated 600 million birds die from building collisions every year in the United States. Scientists at the Cornell Lab of Ornithology have published new research highlighting artificial light at night as a contributing factor.
The research was published in the journal Frontiers in Ecology and the Environment. It combines satellite data showing light pollution levels with weather radar measuring bird migration density. » Continue Reading.
Using data on 77 North American migratory bird species from the eBird citizen-science program, scientists at the Cornell Lab of Ornithology say that, in as little as four decades, it may be very difficult to predict how climate change will affect migratory bird populations and the ecosystems they inhabit.
Under future climate scenarios, changing winds may make it harder for North American birds to migrate southward in the autumn, but make it easier for them to come back north in the spring according to researchers from the Cornell Lab of Ornithology.
They came to this conclusion using data from 143 weather radar stations to estimate the altitude, density, and direction birds took during spring and autumn migrations over several years. They also extracted wind data from 28 different climate change projections in the most recent report from the Intergovernmental Panel on Climate Change (IPCC). Their findings were published in the journal Global Change Biology. » Continue Reading.
Most songbirds migrate in darkness, usually when weather conditions are favorable. Tailwinds can produce massive migratory movements. Rain can shut down flights entirely.
“Knowing when and where a large pulse of migrants will pass through is useful for conservation purposes,” says Benjamin Van Doren, a former Cornell undergraduate and now Ph.D. candidate at the University of Oxford. “Our forecasts could prompt temporary shutdowns of wind turbines or large sources of light pollution along the migration route. Both actions could significantly reduce bird mortality.” » Continue Reading.
The following comes from the Cornell Lab of Ornithology.
When male animals compete over mates, it’s often a showy affair: think of elk tangling antlers or tom turkeys strutting and gobbling. But for a Costa Rican hummingbird, it seems mental prowess holds the edge over mere physical flamboyance.
New experiments show that dominant male Long-billed Hermits have better spatial memories and sing more consistent songs than less successful males, according to research published this month in the journal Scientific Reports. The benefit of a good spatial memory even outweighs the advantages of bigger body size and extra flight power. » Continue Reading.
The Cornell Lab of Ornithology and Alaska Organic Fertilizer company are offering grants to support school gardens in the United States, excluding it’s territories.
BirdSleuth, Cornell Lab’s K-12 education program, will distribute $25,000 in grants to 20 schools that create or revitalize a garden that supports local wildlife, healthy living, environmental education, and Science, Technology, Engineering, and Math (STEM) learning. Grants range from $500 to $2,000. » Continue Reading.
The third annual Global Big Day takes place on May 13, 2017. The term traditionally applies to any effort to identify as many bird species as possible in a single day. Bird watchers around the world are invited to watch and count birds for any length of time on that day and enter their observations online at eBird.org.
“The past two Global Big Days have set back-to-back world records for the most bird species seen in a single day,” says Chris Wood at the Cornell Lab. “During last year’s Global Big Day bird watchers from more than 150 countries tallied more than 60 percent of the world’s bird species.” » Continue Reading.
Participants from more than 100 countries submitted a record 147, 265,000 bird checklists for the annual Great Backyard Bird Count in February and broke the previous count record for the number of species identified. The 5,090 species reported represents nearly half the possible bird species in the world.
The four-day count marked the 18th year for the event which is a joint project of the Cornell Lab of Ornithology and the National Audubon Society with partner Bird Studies Canada. » Continue Reading.
If you peek into a wood duck nesting box during the breeding cycle, you might find 10 to 11 eggs, which is the bird’s normal clutch size. But you might also stumble upon a box overflowing with as many as 30 eggs. How, you might ask, can one duck lay and care for so many eggs? The answer is: she can’t.
These huge piles of eggs result from intraspecific brood parasitism, otherwise known as egg dumping. This is when a bird lays eggs in a nest that does not belong to her. Waterfowl – and wood ducks in particular – often engage in this behavior. » Continue Reading.
The number one reason to have a bird feeder near your home, of course, is to enjoy observing the birds that come and go and their behavior. And when northern winters are at their most severe, you may also be helping some birds survive.
But there is another potential and broader benefit, for both birds and perhaps your own satisfaction, that can arise from feeding birds: letting scientists know what you are seeing. Even common birds such as chickadees and juncos carry important messages about the health of bird populations and trends among them. The problem, of course, is that ornithologists can’t be in very many places at any given time. But bird enthusiasts can be, and they can function as “citizen scientists.” » Continue Reading.
Merlin, the Cornell Lab of Ornithology’s free bird ID app, is now available for Android devices. Merlin presents you with a list of the birds that best match your location, time of year, and description of the bird.
“Merlin knows which birds are most likely to be within a 30-mile radius of where you saw the bird—at the time when you saw it,” said Jessie Barry at the Cornell Lab of Ornithology. “It’s the first app to tap into 70 million observations contributed by birders to the eBird citizen-science project, along with 3 million descriptors of birds to help match what you saw.” » Continue Reading.
You’ve heard the question a million times: What bird is that? Now Cornell Lab of Ornithology have a new way to get an answer. Merlin is a free iPhone app developed by the Cornell Lab to help beginners and intermediate bird watchers identify 285 species in North America.
Merlin draws upon 70 million eBird sightings to calculate which species you’re most likely to encounter within about a 30-mile radius of your location at the time when you saw the bird. The app asks five questions about size, location, and so on. Then it displays a range of photos showing birds that match your description. The app also comes with more than 1,400 photos, plus ID tips, sounds, and range maps for each species. » Continue Reading.
For centuries people have marveled at the migratory abilities of birds, but new research is now putting numbers on those seasonal feats—for more than a hundred species at a time—using data contributed by thousands of amateur bird watchers.
In all, more than 2.3 million sightings were summarized to reveal migratory routes of 102 species in North America, in a paper being published August 1 in Ecology. The results provide a fascinating glimpse at an astonishing range of species: for instance, the tiny Calliope Hummingbird crosses the continent almost three times as fast as the Northern Shoveler, which outweighs it more than 300 times. They also highlight the immense scientific value to be gained from bird watchers’ sightings when they can be combined into a single large database. » Continue Reading.