found some EJ posts dated back to 2006 around Naxx timeframe and such. the Haste buff Battle Squawk was in the game during vanilla time (exactly when it was, who knows)http://forums.elitistjerks.com/forums/topic/8374-gnomish-battle-chicken-buff/
Posted 21 Sep 2006
I was goofing around with some of my engineering trinkets yesterday, and happened to notice that my Gnomish Battle Chicken gave my party members and I a buff that increased attack speed our attack speed by 5%...
With a 4 minute duration!
Thottbot link: http://www.thottbot.com/?sp=23060
Isn't this crazily imbalanced?
Has anyone else realized this, and put it to use on some of the later boss fights?
Furthermore, does it stack with multiple Battle Chickens (yikes...)?"
it also mentions some stuff about the arcanite dragonling as well on the 2nd page.
another wowzam source of 2006:http://wow.allakhazam.com/forum.html?forum=21&mid=115143751363217388