We have three Chaffinch ( all male ), two Bluetits, two Robins, two Blackbirds, two Crows, Two Magpies, one or two Dunnocks, one Wren I've seen and around 6-7 Starlings. There used to be 30-40 Sparrows resident here all year round. This year I've only seen two.
I suspect they might be thinking about making little baby birds . Although with all the rain we've had and continue to have I may well have to consider building an Ark.