Monday, March 07, 2005

JOHN BLAKEMAN ON INCUBATION

"If the Hawk Bench folks watch carefully, they will be
able to see when incubation begins in earnest. The
parents, especially the female, will first sit
with a slight elevation. Then, when she decides to attend
solely to incubation, she simply melts down into
the nest, showing a markedly lower profile. When you see
this, incubation is underway.

Also, a close reading of Lola's physical deportment at
the nest site can reveal that an egg is descending
through her single fallopian tube. In the day or hours
before laying, the female will often just stand at
the nest edge, or on a perch nearby, with an almost
glazed look in her eye. There may be some discomfort
involved in creating and passing an egg through her reproductive organs. I recall seeing this. The
female expressed a restrained, almost contorted
deportment that I've never seen since. She even walked
strangely around the nest rim, almost in the manner of a
duck. She didn't seem to want to pick up her feet.

All of that should be in another week or more."