Move over robins; red-winged blackbirds are the real harbingers of spring.
The male’s scratchy “oak-a-lee” songs are heard when the world is still blanketed with snow and maple sap is just beginning to flow. Males return north well before females, and the early bird does get the worm. In this case the metaphorical worm is prime breeding territory.
Daylight floods a rural NH valley. A rooster crows in the village. The morning songbird chorus features mourning doves, red-wing blackbirds, a cardinal. The symphony will soon swell with grouse drumming, wood thrush flutes and a crescendo of warbler songs.
Strong sunlight of lengthening days is the catalyst that controls circadian rhythms influencing production of hormones - in birds, wild mammals and people.
After a long winter and several false starts, it looks like New Hampshire might finally be heading into spring.
Mild temperatures on Sunday brought many Granite Staters outside to enjoy the weather. Concord resident Annie Morgan brought her eight-year old son to a city park. And she was confident that this time, spring was here to stay.
“Well I’m determined! It’s not going anywhere," she said with a chuckle. "No, we’re not getting any more snow, and it’s going to be beautiful!”
It’s a tiny owl, the northern saw-whet, and it’s a lot more common than bird surveys suggest. As you might imagine, small birds active only at night are not easy to survey. Also important to note is that because they're the favorite meal of the much larger barred owl, their survival depends on keeping a low profile—usually under cover of dense conifers.
Maple time in New England brings out the essence of the trees and the character in the people. For those who love trees, a tongue-tip taste of fresh maple syrup is a sacrament, maple communion at the end of a long winter. To ingest the distilled essence of trees confers the spirit of the forest itself.
The Vernal Equinox has arrived! For one brief moment, everywhere on planet Earth, day and night are equal: 12 hours from sunrise to sunset and sunset to sunrise.
The length of daylight compared to dark, is known as photoperiod. Seasonal changes in photoperiod trigger a lot of changes in plants and animals. Many plants are known as short-day species; they flower after the summer solstice when days are getting shorter. Plants that bloom in spring are known as long-day species.
While the weather these days might not be an indicator, spring is officially here. Which got us thinking in the Word of Mouth pod...about the birds and the bees. And also birds and bees. On today's show a conversation about the most awkward talk a parent has to have: "the talk." Also, a bird expert tells us about this year's unusual snowy owl migration. We'll also hear about the next great frontier in self tracking apps: fertility apps.
Listen to the full show and click Read More for individual segments.
For some plants, the race to harvest sunlight to make food starts early, in March. Skunk cabbage and many alpine plants begin to photosynthesize under the snow using red "anthocyanin" pigments which can absorb the longer-wavelength blue light at the ultra-violet end of the spectrum--even while buried beneath the snow.
A huge question in evolutionary biology is the very basic one: How do species form? It turns out that the Dark-eyed Junco, one of the most common birds at winter feeders, is providing a clear picture of that process.
If you're out for a walk this month, and you hear something that sounds like ducks quacking, don't expect to see ducks. The call of a male wood frog fools a lot of people. The all-male frog chorus is revving up now, and wood frog males are the first to announce their availability to females.
You've got to hand it to dandelions. They're transplants from Europe that have adapted and spread very, very well. Anyone who has tried to pry dandelions loose from lawn or garden knows they have a long tap root. Leave any root segment and the plant will rise again.
Fifty years ago, Rachel Carson's book, "Silent Spring", woke the world up to the perils of chemicals that promised food crops free of disease and insects, and time outdoors free of mosquitoes. The book is credited with starting the modern environmental movement. It was the birdwatchers that first alerted the scientists about robins literally falling from the sky soon after DDT was sprayed, as well as longer-term declines in birds higher on the food chain.
Mid-May is like rush hour in the bird world. Migrants have returned for the nesting season and the air is full of birdsong. As you might guess, birdsong is as varied as birds themselves. In fact, birdsong is defined generously to include any and all sounds they make with territorial or courtship intentions. Let's start with a traditional vocalization and then branch out.