by Pajarita » Thu Jan 07, 2016 11:58 am
I did assume she was talking about sexual hormones, maybe she wasn't... sometimes, my mind makes leaps and, in this case and in retrospect, I think that my reasoning was that, normally, when you talk about parrots behaviors (screaming, in this case) and hormones, you are referring to sexual hormones but, in any case, there are no hormones I know of (and, of course, I could be wrong on this) that act in response to an event and stop two days later. Because, yes, adrenaline is a hormone, it's not sexual and it is a behavioral one but it's very short term. It's produced within two or three minutes into the stressful situation and stops as soon as the high stress is over and, as it starts been metabolized as the event is happening, it dissipates very quickly. What the body produces and people call 'adrenaline' are actually two different hormones: epinephrine and norepinephrine and their half-life are 1.2 and 2.5 minutes, so as you can see, when we are talking about a trip outdoors and even if it was stressful enough to give the parrot an adrenaline rush, we are talking about a couple of hours from beginning to end.
Now, cortisol, the stress hormone, is a different story because it can be produced almost constantly but it doesn't affect the body behaviorally in the short term, only in the long term. As a matter of fact, I was reading an article about this new study on children. They take samples of their hair and measure the cortisol levels because they believe that individuals that are under stress growing up (children and teenagers and things like divorce, loss of a parent, abuse, etc) are more prone to behavioral and psychosocial disorders when adults (as well as obesity, diabetes, cholesterol, blood pressure and even immune system problems) so they figure that, if they could identify the ones at risk in an easy way (thus the hair), they could start treating them while still young to help them cope better as adults.