I didn't see or hear of any chickens once we were underway, so they were better passengers than those seated behind us.Did the chicken behave well on the bus ? They can be bad travelers .
As occurs in Thailand too, those bus drivers race along and other road users are best advised to get out of the way. At least with regular tooting of the horn they know it's coming. We overtook countless other vehicles enroute, but it was the fiddle-fucking about at stops and regular picking-up and dropping-off other Khmer passengers which began to grate in the end.
After having travelled with other bus companies, I chose not to use Paramount again. There are always other choices, but they all drive like they're in a race.