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Oregon Caves National MonumentVisitor start to enter the cave during the candle light tour.
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Oregon Caves National Monument
Birds

Our bioregion has the most birds in Oregon. We have federally threatened species on the Monument which include northern spotted owls (Strix occidentalis) and visiting bald eagles (Haliaeetus leucocephalus).

Other visitors found are the endangered peregrine falcons (Falco peregrinus), now federally petitioned as threatened.

The most commonly seen birds on the Monument are Stellar's jays (Cyanocitta stelleri) and ravens (Corvus corax).  Other commonly seen birds include dark-eyed juncos (Junco hyemalis) and pileated woodpeckers (Dryocopus pileatus). 

 

Acid dew dissolves the cave wall to make small pock marks.  

Did You Know?
Carbon dioxide mixes with water that condenses on the wall of the cave to create a very weak acid. Over long periods of time this "acid dew" eats away at the marble walls of Oregon Caves making the cave larger.

Last Updated: August 02, 2006 at 14:31 EST