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On the Trails: Out and about in mid-June

...a week old, but eventually get most of their food by diving. I have reports of curious doings by tree swallows at a nest site, where more swallows than just the nest owners were interacting, and sightings of solitary sandpipers, which have the...
On the Trails: Small pleasures add up

...below a branch and surrounded by drooping twiglets - very well concealed but lower than kinglets usually choose for a nest site. The nest was small, in keeping with the size of the bird, and very thick-walled and well-insulated. Unlike the...
On the Trails: Visiting Gustavus

...capacity to synthesize carbohydrates that provide energy. And one has to wonder if the cropped-off willows offer fewer nest sites and foraging surfaces for birds, leading to a lower density of birds than would occur in unbrowsed stands.A male harrier...
On the Trails: Skunk cabbage and its sex change abilities

...and there are no other satisfactory nest sites on this stream. But this year the disturbance of the nest site area by humans has been serious...gravel bar that is very near the nest site, preventing the birds from courtship...
On the Trails: Bumblebees

...they may then rear their own sons (from unfertilized eggs). Sometimes a late-emerging queen who fails to find a good nest site turns assassin, invading a recently established nest of the same (or closely related) species, killing the resident...
On the Trails: Anticipating spring

...sampling green vegetation. Now, as I write this (in mid-April), the American dippers are moving up streams to their nest sites. Purple mountain saxifrage is starting to bloom up near the glacier. Crows are lining their nests with grasses.I'm...
On the Trails: Kingfishers

...was watching a pair of dippers that had a nest in an old broken-down wooden dam. I sat on a brushy cliff above the nest site, watching the dippers go about their business of raising a family. The dippers paid me no heed, coming and going up...
On the Trails: Red cedars

...predators on songbird eggs and chicks, in the 1940s didn't help, of course. Loss of the understory meant both loss of nest sites and loss of food resources for birds; forest insects were significantly less abundant and berry-producing shrubs became...
On the Trails: Lazy day at Crow Point

...reaches of the river. Canada geese honked their way up the river, two by two; could they already be thinking about nest sites?We found an old stump under which a porcupine had sheltered. A sizable pile of scat pellets filled a depression under...
After the elusive goshawk

...goshawks are very secretive and wide-ranging, so the only way you can really study them firsthand is to find their nest sites," Flatton said. To that end, much of the field work has involved finding nesting sites; now biologists will check...


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