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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: Winter to spring limited by the availability of suitable habitat - they need lakes with early ice-out, protected shorelines for nest sites, stable water levels so the nests don't get flooded, and clear, shallow waters for foraging. They also may have...
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...
Late August in Granite Basin

...the edges of the pool at the entrance to basin and swam in the shallows after aquatic insects. The dippers' customary nest site below the big waterfall had been under snow for the last two springs and was therefore unusable, but they may have nested...
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...
Airport eagles' nest will be moved more quickly

...and lay an egg it becomes off-limits for removal, so they need to watch for when the birds start dragging sticks to a nest site. Board member Laurie Berg asked if they had permission from the Alaska Department of Fish and Game. Borchert said they...
Salmon life cycle enriches Southeast

...bridges on Sheep or Salmon creeks, we can watch toothy male salmon fighting over females or female salmon fighting over nest sites. There are, however, some aspects of this seasonal miracle that are less obvious but no less interesting and thought-provoking...


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