Posts tagged ‘migration’

Witness to migration

Posted November 9th, 2011 by kcorliss. Comments (2).

Living in North Dakota, I’m lucky enough to be witness to some pretty amazing annual bird migrations. Snow geese in the hundreds of thousands if not millions, sandhill cranes by the thousands, tundra swans by the thousands, etc. But apparently my little corner of the country doesn’t lend itself to seeing large numbers of yet [...]

What happens in the night

Posted September 16th, 2011 by kcorliss. Comments (2).

In the big scheme of things this technology is fairly new–Doppler radar–particularly as it pertains to bird migration. I don’t have the time to dig into the research but it was someone from the Southeast who came upon this tool as a way to track migrating birds. Some of the radar images from the Gulf [...]

Speaking of thrushes

Posted May 5th, 2011 by kcorliss. Comment (0).

There is the expected. Then there is the unexpected. As circumstances vary, so do expectations however. It was many years ago when I saw my first wood thrush. I remember it distinctly. I had had a stop at Andrews AFB in Maryland (this was back in my military flying days) with an overnight stay. While walking [...]

viele schmetterlinge

Posted August 23rd, 2010 by kcorliss. Comment (0).

My buddy is trying his hand at a Rosetta Stone course in German. The above headline translates to many butterflies. Anyone who has left the confines of homes or buildings the past few days cannot help but notice the monarch butterflies darting about. Indeed last weekend there were hundreds, if not thousands, festooning the trees [...]

Saturday, a warbler day

Posted August 23rd, 2010 by kcorliss. Comment (0).

The neotropical warblers are a group of songbirds much sought after by birders. Partly because we see them so little, they being mostly migratory. But mostly because of their inherent beauty. I woke up Saturday to a thick fog all over the area but with lots of bird activity. Tiny flocks of birds were still moving (migrating) [...]

Technology lifting yet another veil

Posted August 9th, 2010 by kcorliss. Comment (0).

I ran across a guy’s name in the article–Mark Martell–and so read the story with heightened interest. I had met Mark a couple of times while he was working for the Minnesota Raptor Center. He annually shows up in Fargo to help band the peregrine falcon chicks hatched on one of our downtown banks. He is currently [...]

Molt in migration

Posted September 14th, 2009 by kcorliss. Comment (0).

I freely admit I never really thought about this or even paid much attention. But Sullivan and Liguori wrote an article which appeared in the July issue of Birding magazine telling of this phenomenon–raptors molting flight feathers during migration. Almost everything I’ve read says molt (or feather replacement) is an energy-sapping process requiring birds to [...]

Raptor river

Posted September 10th, 2009 by kcorliss. Comment (0).

A company trip to Duluth, Minn., provided the opportunity to get to Hawk Ridge yet another time. It’s always worth it for anyone interested in raptors, especially during migration. Tuesday wasn’t a particularly good migration day (wind and weather-wise) but it made for glorious viewing. My copilot and I tallied nine species in the hour [...]

migrant or wanderer?

Posted August 12th, 2009 by kcorliss. Comment (0).

While the shorebirds have stolen the headlines here (and elsewhere in the northern hemisphere I would imagine), most folks are anxiously awaiting the return of the warblers. Those colorful little neotropical migrants which evoke most of the oohs and aahs from the binocular-toting aviphiles. For the past three days single yellow warblers have been spotted [...]

Welcome relief

Posted April 13th, 2009 by kcorliss. Comment (0).

I guess folks can finally say we have shed the yoke of winter. The very last remnants of snow are all but gone and my yard will likely lose the remainder of it today. Migrants have been pouring through the area. Waterfowl particularly get much attention during this season. They are large, travel in humongous groups [...]