Hi Olyssa,
As far as I know, snowy owls venture south periodically in the winter
in response to prey availability (snowshoe hares, lemmings, other
small mammals). Natural population fluctuations or extended cold
periods with snow pack providing subnivial zone cover (or mortality
with lack of snow pack) for prey species and reduces prey availability
for the owls, prompting migration south in search of food. Snowy owls
are probably more commonly observed south to NJ primarily along
coastal habitats; but from what I've heard they have been seen as far
south as Georgia on rare occurrences.
I'd check with local Audubon centers for more detailed info for
historic snowy owl sighting in your area.
Happy Birding!
Rob Vincent
Quoting Olyssa Starry <olys...@umbc.edu>:
hi all,
i am an ecologist by training, but a bird-watcher by hobby. i've been
watching the sightings lists and have heard from friends about snowy owl
sightings first in harrisburg pa and then as far south as maryland.
is there anyone on this list that has any insights that would explain
this/confirm whether or not this is very unusual?
thanks,
olyssa
