Wednesday, March 22, 2017

Monday, February 27, 2017

Great blue heron and Ibis

A morning of watching the great blue herons and their nest


Male bringing building material


Three nests and three herons.  The breeding plumage is beautiful


 Three herons


Male taking off to fetch building materials


Male bringing a twig


Female balancing act


Ibis flight


Can visualize the wing structure


Sunday, February 26, 2017

NIctitating Membrane of a little blue heron

Normally I don't pay attention to eyes - but I was in my kayak and a little blue heron was perched near me.  I took a bunch of photos.  When I got home, I thought I had a focus problem because sometimes the eyes were dull and other times - quite clear,  I saw one where the eye was half blurred - so I did a google search on bird eye membrane - and sure enough, there was a nice group of references to the nictitating membrane.  Here are the photos:



The nictitating membrane over the eye - closes left to right


Without nictitating membrane





About 1/4 closed



Looking at me

Looking left


I think this is a yawn






Looking at me