Owl pellets?

My mum and dad just found these on their window sill. Are they owl pellets? Any idea what species? I'll try and get them off them and get some better photos.
Pellet

Go on then, anyone for an educated guess at what made this pellet, and who was on its menu? (also in the pellet, but not pictured: Lots of grey fur; large fly pieces, robberflies or similar; one small...
Owl 'pellets' without fur?

Hi, Can you help with a puzzle please? This morning I found a pile of small mammal bones at the bottom of a fence post in local woods. Last year we had Long Eared Owls nesting in these woods and there...
Buzzard Pellet

Found this which I believe is a Buzzard Pellet. What has it eaten that has long hairs. Hope photos post okay this time
Suet Pellets

Hi,I have been a member of the RSPB for a feww years now but I thought I would now join the forum and hope that someone may be able to help with the following. I am very lucky that I have plenty of birds...