Rufous vs Gray
From the Peterson Field Guide.
The Eastern Screech Owl is a species that have two distinct morphs and live within the same population (polymorphism). It is generally known that gray-morphed Screech Owls are more frequently found in the North and the rufous-morphed birds are mostly found in the South. Many publications will discuss this relationship with the rufous-morphed birds not being able to handle the colder winters and I know there are some studies are trying to prove that. I did find an interesting publication by Mosher and Henny (1976) who explains how the rufous-morphed Screech Owls oxygen uptake is greater than the gray-morphed birds when exposed to lower temperatures. I have also heard about the relationship with the different morphs and tree species that are found in the areas !! (more…)
Groundhogs Day
To all my Blogging friends; I Allegany Tom on the 2nd of February 2008 did not see my shadow when I woke up this morning. I predict that spring will come early this year!! I just love this holidays and on a side note . . . . Punxsutawney Phil did see his shadow this morning! He is predicting that there will be “six more weeks of winter”! (more…)
Short-eared Owl [video]
Short-eared Owl on Telephone Pole
Yesterday evening I was invited to join a State Biologist from the Department of Environmental Conservation in banding some Short-eared Owls up in the Buffalo, NY area. If you know me . . . . I couldn’t resist this opportunity to seeing such an amazing bird up close. I decided to take a half day from work and drive the 2 hours up north for these marvelous birds! Chuck and his team had already finished setting everything up and was about to starting to test the equipment (sunset was approaching fast). Just as he felt that everything was ready . . . . the most beautiful Short-eared Owl suddenly appeared from behind us as if it was a flying ghost!! I never saw so many people scatter to there vehicles as I did then!! (more…)
Mon@rch's Nature Blog 