Migrating Great Blue Herons have arrived to Cape Ann, where they join the small number of Great Blues that overwinter in New England. Look for them in marsh, pond, and along the shoreline.
Contemplating taking flight, the perching juvenile Great Blue Heron moved its feet slowly, while turning to face the shore, then gracefully lifted its wings and departed, with a very loud and un-elegant QWOCK.
No signs of any Great Blue Herons since the big Thanksgiving Day freeze. Two days into the frigid temperatures, the last one observed appeared very unhappy. The unfrozen bits of water were too cold to forage. He seemed so cold, wasn’t fishing at all, and was only standing on the shore, in the glummest manner. I urged him onward, worried his frozen self might look tempting to a coyote, and hope perhaps he departed under the brilliant light of the full November Frost Moon.
Mostly elegant, though sometimes appearing comically Pterodactylus-like, the Great Blue Heron is found in nearly every region of the United States, Mexico, and Central America, as well as the southern provinces of Canada.
Its light weight, a mere five pounds, belies the fact that the Great Blue Heron is North America’s largest heron, with a wingspan of up to six and a half feet and a height of four and a half feet. I write elegant because it truly has a grace unsurpassed when in repose or waiting to strike a fish. Images of Pterodactylus come to mind when you see the bird battling for territory with other herons or flapping about in a tree top; the Heron loses all its sophisticated exquisiteness, transformed into what looks like a great winged beast.
Pterodactylus images courtesy wiki commons media
This summer past was a tremendous year for observing herons and egrets on Cape Ann. Our marshes, ponds, and waterways were rife with Little Blue Herons, Snowy Egrets, Great Egrets, Yellow-crowned Night Herons, Black-crowned Night Herons, Green Herons, American Bitterns, and especially Great Blue Herons.
At every location Great Blue Herons were foraging either with a flock of mixed herons and egrets, or in a solitary manner. Great Blue Herons hunt day and night and I would often find them at daybreak. They will stand quietly for hours, repeatedly striking the water with lightning speed, and nearly always resurfacing with a fish or frog. Great Blue Herons are survivalists and their diet is wide ranging, including large and small fish, frogs, insects, small mammals, and even other birds. Because of its highly varied diet, the Great Blue Heron is able to spend winters further north than most other species of herons and egrets. Even when waters freeze, we still see them on our shores well into December.
Fishing – Great Blue Herons capture small fish and amphibians by plunging into water and then swallowing whole the prey. They also use their powerful bills like a dagger to spear larger fish.
Last week we posted a photo of a group of Great Blue Herons, Cormorants, Snowy Egrets, Little Blue Herons, and Great Egrets all foraging together on a rainy morning. The Great Blue Herons are so perfectly camouflaged when perched on the rocky shoreline and we asked how many GBH folks could see. Reader Julie W. saw the most and she even sent the photo back with the Great Blues circled. Thank you Julie for taking the time to do that!!
What do Great Blue Herons, North America’s largest species of herons, eat? Because they feed in a variety of both freshwater and saltwater habitats, their diet is richly varied. Great Blue Herons dine on small fish, crabs, shrimp, mice, rats, voles, frogs, salamanders, turtles, gophers, snakes, many species of small waterbirds including ducks and ducklings, and insects.