Sorry about the sudden loss, must have shocked your kids but good for you for trying to find out why!
In Nov I purchased 9 chicks from a store.... my options are limited and I wanted to try some DP birds and intro new blood. 100% have done well.
Not knowing the cause is really really frustrating, better luck next time.
As an aside, years ago our beloved pink and grey galah died exactly the same way you described; much later we found out from a local vet that a batch of poisoned seed hit the supermarket shelves in our area and many families lost their parrots, we thought it was something we did.
In Nov I purchased 9 chicks from a store.... my options are limited and I wanted to try some DP birds and intro new blood. 100% have done well.
Not knowing the cause is really really frustrating, better luck next time.
As an aside, years ago our beloved pink and grey galah died exactly the same way you described; much later we found out from a local vet that a batch of poisoned seed hit the supermarket shelves in our area and many families lost their parrots, we thought it was something we did.