LEGO bits after washing when received are stable as they are no longer off-gassing.
The two dangers are; if they melt as a result of fire or falling on the heater element of a dishwasher or stove top. As the dangerous gases that are released are know to kill Parrots. And second, the tiny bits of Sharpe pieces when broken by either the Parrots Bill or stepped on, etc.., as if they eat them, the bits will cut their intestines.
LOL, I will send anyone a pound of Legos! I have bins and bins of them left over from my 2 sons. But really if your parrot doesnt chew on them probably not that dangerous, but who can guarantee that?