Vigorous GHO duet, suburban Jeffco

[dgulb...@gmail.com]

2 AM to 2:30, a continual duet.  Have heard Great Horned Owls

several times lately. The abundance of rabbits in the last few years has

brought them back.  Last night the vigorous duet called to 

mind a fugue.  The second caller began after just a few

notes of the male, and her notes were much higher in pitch,

with a last note that rose rather than fell.  In previous years (43) here,

I don't recall hearing a duet except during Jan-March.