Monday, February 27, 2017
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
Tuesday, February 21, 2017
Feb 21, 2017: More Nest Building by Great Blue Herons
Yesterday was a bust - good sun but watching the Great Blue Herons' nest building yielded nothing (for 2 hours). Today I returned earlier (7:30) and though cloudy - there was active fetch and toting construction materials by the males. Also - it was a day of the herons - a little blue, a tricolor, little green and great blue. Great day.
Saturday, February 18, 2017
Feb 18 2017 Continuation of watching the heron nest building and baby making
Its Saturday and time to take the kayak out on Walden Lake to watch the Great blue herons do their mating thing. The surprise today was that there are two nests in the big pine tree so I was able to watch two activities in action. Along the way was a little blue heron - here
Here is the pine tree - a mature nest in the center and a work-in-progress nest in the lower left
Dad great blue heron dropped by to pass twigs to mom
Here is dad passing a twig to mom
And here is mom carefully placing the twig in a critical part of her nest
She is holding the twig at the end of her beak
A video of nest making activity (oh sigh - none of the videos work - probably must post to YouTube and add a link)
The dynamics of nest building
Setting moon to the left of their tree homes
The female often stretches her next and points her beak up as if to signal her husband to take off and bring in some more construction supplies. He gets the message and begins his takeoff check list
He is about ready to depart
Hmm-- some last minute instructions
A video of nest building teamwork
Sunning
Watching over mom
This is the most fun part of watching the male takeoff and land without obstructions from the pine needles
Beautiful takeoff
For whatever reason he is flying into the forest
Here - back to have a discussion with mom
The dynamics of discussion
This is the 2nd nest - a work in progress. here she is picking pine needles and twigs
Reaching down to grab a twig
Success - a nice structural element
Another nice twig
The dynamics of harvesting and organizing her nest
The two nests
The little blue heron. The advantage of a kayak is that these birds are not easily spooked so I can get pretty close - much closer than when I walk toward them
Subscribe to:
Posts (Atom)