Have you not yet had Avian Flu in the US?
As you probably know there have been a few scares here in the UK which I believe were put down to migrating birds. This happened before I became a parrot owner so I've just had a look at the relevant govt website.
Defra, UK - Disease surveillance and control - Notifiable diseases - Avian Influenza
Doesn't look as though a cull of indoor pet birds would be a likely scenario here...
Defra, UK - Disease surveillance and control - Notifiable diseases - Avian Influenza - Advice to poultry keepers
I bloody well hope not anyway!
Certainly poultry flocks were/would be culled.