how did it even entered 

door will be opened by bus capt only when he's a bout to start his/her shift
imagine the chaos, if the bus were filled w/ passengers & the bird flying erratically right above their heads
		
 
		
	 
most likely before start shift, both doors open at interchange, bird bird see open door waaaaaaah explorer explorer adventure, driver suddenly enter front door and close both, tio trap liao. panick panick fly everywhere inside
these mynahs can be quite dumbasses at times, but if they familar with the area, they know how to navigate
JurongPoint ever saw a  Mynah, enter through the taxi stand entrance, straight fly into to dunno where. After a while can see it flty back out to the entrance.  If the glass door is closed, it will just sit there and wait until it opens, then it just flies out  
