Probably because we don't now have cats, we've had many more birds in, and nesting in, the garden - including at least 1 pair of robins which have built their nest in the ivy on the fence, and only about 5m from the conservatory doors.
This one is thus a regular visitor to the plum tree just opposite the nest - it knows we are watching, and so it watches us until it thinks we are not looking, and then flies into it!
Any idea what species the dead (?) spider is?
PS: this cropped version is quite sharp but the original is much sharper still (Pentax K-70 1/640s F6.3, ISO 2000 + Pentax-DA 55-300mm F4.5-6.3 ED PLM WR RE @280mm)!