Mike,
These BRB's behave exactly as you describe when hungry; soon after dusk I'll find them in that position when hungry. Not always but often they'll then start to move around later in the evening (midnight and later) if not fed. What also fascinates me is the seasonal behaviors; at this time none of mine are eating (though by the looks of Kali in the above photos I might have to offer her something), in summer hunkered down and not that mobile (just too warm?), then in fall they are all over the place, winter they are most visible during the day because they really utilize the vertical heat gradient and spring either gravid females and active, frustrated males or ungravid females and active, frustrated males.
I think that neonate BRB's in the wild are highly arboreal. After the two litters I've experienced here the babies disperse upwards. Because of the hardware cloth screen separating the incandescent lights and an opening in the back from the enclosure I've had escapees both times. The babies have been found high up. I wish I had the presence of mind to photograph one wrapped around the trunk of a corn plant 6 ft high; straight out of the jungle!
Thanks for the comments,
Paul
Great pics Paul. I never get tired of seeing that cage. It's set up so that you really see a range of behaviors from the animals. Let me ask you, In my cages I often see my animals sitting with thier heads at the opening of their hide spots or their heads just barely extended from the hides. Have you seen this in your cage?
My theory is that wild BRBs search out high rodent traffic areas, find a nice spot to curl up and hide and just wait for something tasty to come by.
Normally, if a snake is in the position described above, they will eat. If they are curled up with their heads deeper inside of the hide spots, they are more likely to refuse their meals.
Sorry to try and highjack the thread. Your picture just got me thinking about behaviors