Some bird exchanges may be beneficial. Most of the birds are offspring of original breeding pair Don x Rosie. The new male Sigsbee (ex Twycross) seems to have struck it up with female Twinnie (first ... - I believe - chick hatched in 2021).
Any information whose parents Toby had been (not Rosie - she had 3 chicks ... all still at Sewersby and an UNKNOWN male)?