Sexual Dimorphism

Got your attention?  Well, I guess it isn’t that exciting, but I got a display of sexual dimorphism this evening while riding home from UMD.  “Reverse” sexual dimorphism occurs in birds of prey  –  where the female is larger, often by quite a bit, then the male.  Here are some good reasons why.  After stopping to fix a flat on the bike path I got going and immediately caught something in my spotlight of a headlamp.  My HID light is super bright which often allows me to catch things such as opossum, raccoon, deer, or just cats, scurrying away in the distance.  However, this object was sort of running at me, then turning hard and running straight up the hill to the right.  It looked really odd – and then it stopped moving and hit a tree.  Eastern Screech Owl.

screech_owl.jpg Just sat there looking at me.

Explains the lack of noise as owls are near silent.  After getting a good look and doing my best impression of great horned and spotted owl (I can’t mimic a screech owl) I started off again.  In an instant another owl flew right down in front of me, then turned up into the branches above me.  This one was quite a bit larger – the woman of the house.  Nice way to spend the evening.  Riding home, seeing wildlife.

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~ by Indy on February 27, 2007.

One Response to “Sexual Dimorphism”

  1. LOVE IT BIRD MAN! YOU KNOW I AM A BIG FAN OF ‘DEM FEISTY FEMALE BIRDS OF PREY! ACTUALLY ALL BIRDS OF PREY – THE BOYS ARE OK TOO

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