Things That Go Bump In The Night

It's 2am, I cant really sleep. However I have heard in the last hour
2 Tawny Owls calling to each other, one of which must have been sat on my roof.
Superb Tawny Owl

Several Redwing and Fieldfare, their calls like bat squeeks high in the night air.
Redwing by Esther Tyson

These two scandinavian species will soon be leaving these shores, having exhusted the berry supplies of hedgerows nationwide. I haven't seen too many Waxwing this winter though, despite good numbers being reported elsewhere.
Solitary Fieldfare

Also there is a Robin singing, strange time to sing, however i've noticed before how underneath streetlights Robin, Blackbird and Song Thrush sing in the night. Not forgeting the springtime breeding race and competition for mates..so perhaps it's little surprise such songbirds feel it vital to mark their territory.