Never pay down a deposit in a bank account until you have met the seller, seen signed a purchase agreement.
No serious private advertisers ask for a down payment before you meet.
Receiving an email with an in-scanned ID does not mean that you have identified the sender. You do this on the spot, when you sign a purchase agreement.
Vendo Agapornis fischer Macho, anillado 2025, por no poder atender. Regalo jaula, (con otra bandeja de recambio nueva) bolsa con panizo y 1kg de comida. Muy listo, en fase de domesticación.