Posts Tagged ‘migration

22
May
17

moving North along the Mexican coast…

whales-Mexico-SwittersB

07
Nov
13

Nature: Hummingbirds Amidst the Storm…..Seriously, They were

No, I have no pictures of the feisty, little hummingbirds darting against a heavy downpour and winds this morning. As much as I wanted a clear picture of the birds attempting to feed at the swaying feeders, I seemed to spook them at every turn. I didn’t want to stand outside amidst the tempest. So, you have to take my word for it…these tenacious little flutterers are still here and somehow finding shelter. The temps are still quite moderate (40’s & 50’s).

blowing leaves SwittersB

As much a blur as the hummingbird’s wings.

HUMMINGBIRD INFORMATION (U.S.)  HUMMINGBIRD NEWS

04
Apr
13

Birds of a Feather: Oregon Junco’s Morning Trill

This Oregon Junco (Dark Eyed Junco~Sparrow) was trilling away in the early morning sun. I patiently stood, zoomed and waited for the head shot. I whistled and fussed, but the bird never turned its head all the way to investigate. I snapped anyway and it flew away. 

Oregon Junco SB

Junco Range

06
Oct
12

Dragon Fly Fascination and Migration

As an avid fly fisher, particularly stillwaters, I have this frequently expressed fascination with Dragon Flies and Damsels….but, especially the Dragon. Probably it is the same for you, but these airborne critters alight upon my rod on a frequent basis. Mating in a sizzle-dizzle manner they land on my vessel like I am some dark alley outside of a bar (I made that up and am not sure where it came from). Dragon Flies are positive karma to me, even if not to their unfortunate prey.

I love fishing the ‘nymph’ or larva pattern and attempt to visualize it as a predatory killer, something the predatory Trout rarely fails to smack. So, I found a few interesting tidbits about adult dragons: did you know they (some of them) migrate South? Never considered that an option. They have been known to attack Hummingbirds! All this from these friendly visitors. Maybe I should be more concerned by these creatures:

“During all stages of their lives, dragonflies are fearsome and efficient hunters. If dragonfly larvae were eight to sixteen inches long, as they probably were 300 million years ago, we would dare not swim in fresh water for fear of being attacked.” (XX)

Applying Tracking Device (Christian Ziegler Photo)

20
Jul
12

Smolts & the Dams (How Do They Die? How Could They Be Saved?)

“Observers thought that what was killing salmon in hydroelectric dams was the blunt trauma of striking the turbine blades, or maybe concrete. But the Sensor Fish and its armory of sensors discovered that the culprit was an abrupt change in pressure as a smolt falls past the blades.

The pressure drop sometimes causes a fish to “burp” from its internal air bladder so by the time it reaches the tailrace (the bottom pool of the dam) it is negatively buoyant. In other words, it sinks like a stone. In order to restore its internal equilibrium, the smolt immediately surfaces to gulp some air. And at the surface an enemy awaits.

Birds of prey have figured out that the tailrace of a dam is an all-you-can-eat salmon buffet. They swoop down on the traumatized, beleaguered fish and add to salmon mortality.” More




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