Archive for Loons and Grebes

Red-throated Loon adult nonbreeding 11/9/17

Yesterday I posted a juvenile Red-throated Loon, but pulling in to the parking lot at Seapoint today, this adult was dead ahead. There are a lot of them about at this time of year so if you’re not familiar with them, this is an excellent opportunity to find one. Unlike the drab gray throat, face, and neck of the juvenile, winter adults have white faces, throats, necks and undersides, with a speckled back and a thin pointy upturned bill.

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Red-throated Loon juvenile 11/8/17

Red-throated Loons are both smaller and sleeker than their Common Loon cousins. They ride lower in the water and have thinner bills with a slight upturned and more pointy appearance. This one’s a juvenile told by its overall dull gray head and neck, winter adults have bright white throats, necks, and undersides with dark gray caps. The red throat is seen in both sexes but only in the breeding season. I see many RTLs at this time of year, and this year they seem especially abundant, but as winter progresses they seem to disappear. The only hypothesis I’ve come up with is that the places I tend to see them also happen to be frequented by Snowy Owls in recent years later in the winter and perhaps they become prey.

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Common Loon molting 4/16/17

Many Common Loons along the coasts are molting into breeding plumage right now, shedding the dark gray above and white below of winter plumage for a more formal black tuxedo with white spotted wings. This one is only half there but well on its way, see those drab gray feathers just where the spotted black ones are beginning on the back? That’s the old making way for the new. The head and neck will also turn black with a barred white collar. It won’t be long before this one takes to the sky, returning to its inland territory, a freshwater lake or pond where it bred with its mate last year. Sexes are similar.

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Red-throated Loon 3/22/17

Even in a twilight silhouette it’s possible to tell a Red-throated Loon from a Common Loon. They ride lower in the water, are smaller and more slender, and their bills are much thinner and more pointed with a slight upward tilt. They are circumpolar Arctic breeders and in New England we only get to see them in winter when they migrate as far south as Florida. They aren’t all that rare in winter but are still much less frequently seen than their Common Loon cousins.

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Common Loon 4/10/15

commonlooncrab

This Common Loon is molting from drab winter plumage into its fancy spring tuxedo, in a couple more weeks it’ll be all rich velvety blacks with bright orderly spangles, but by that time many of the breeding adults will have left the coast to set up their territories on inland lakes and ponds. Before catching the rock crab it was snorkeling—swimming along with its head underwater, then slipping under and after a few moments surfacing with its catch which it wrestled with for quite a few moments before it disappeared down the gullet.

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Common Loon 1/13/15

commonloon2

With large webbed feet set far back on their bodies, Common Loons are powerful underwater fishers but are quite awkward on land, which is how they wound up with a name referring to a clumsy person. As winter ice approaches they migrate to the seacoasts, and change their formal black and white breeding attire for a more all-purpose gray and white drab. Common Loons are famous for their plaintive night calls on inland lakes, but on winter fishing grounds with no territories, nests, or chicks to defend, they are all quiet. 

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Red-throated Loon 1/1/15

redthroatedloon

Happy New Year!

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