Thank you Bruce,

Sounds like they are are active intermittently both day and night or either
day or night, but I would guess they rest when they need to either day or
night. The remaining question then is what term works best biurnal,
ambiurnal, omniurnal, intermurnal or some other "-urnal"?

Stewart
West Seattle

-----Original Message-----
From: Bruce Moorhead

...
In delving into some old journal papers recently about snowy owls, they seem
to be rather versatile and catholic in their activity schedule and prey
selection, and can forage either day or night ...

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