Totally fucking serious. Bird Migration Facts
Distances vary depending on species:
Perching birds ( passerines) 20-35 mph
Warblers travel .......................... 20-25 miles per day
Geese and ducks ................. 40-60 mph
Ducks travel up to ....................... 500 miles per day
Shorebirds 30-50 mph and 90-110 mph
swifts travel over .......................... 100 miles per day
Falcons ................................ 40-50 mph
Geese travel up to ........................ 2,000 miles per day
Flycatchers ......................... 10-20 mph
Shorebirds will go non-stop ..................... 3000 miles
More Migration Facts
Birds navagate through a combination of:
-Sighting (they don't call it a "bird's eye view" for nothing) features like rivers, coastlines, and mountain ranges.
-Monitoring Earth's magnetic field, apparently with their visual system and with tiny grains of a mineral called magnetite in their heads
-Observing the stars
-Using the sun for guidance
-Smell
-And probably following their neighbors (many birds migrate in large flocks)
He swims. He gnaws. He builds dams. He moves us with his intelligence and grace. He is the Wily Beaver. And he is here to INTUBATE us all.
Wednesday, April 23, 2003
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