Hi Weegiebird, I think it's a bit early to have jackdaws nesting but it could be another bird, possibly an owl, I saw a photo of rescued tawny owl chick the other day. The best thing to do would be to stand at a distance & see if you can see birds going in & out with food or sticks or anything. If it's an owl it may be more difficult to spot, do you have a local RSPB group who may be able to come out & advise you.
hi Hazel, thanks for your reply. I'm pretty sure its not an owl, I saw jackdaws up on the roof/chimney last week but didn't notice if they were carrying food or sticks, I'll keep checking over the next few days though to see what they're up to. Would they have laid eggs by now do you know? If they're only starting to nest and haven't laid eggs, is it advisable to leave them to it or if I got the chimney swept would they have time to go and nest somewhere else in time for nesting?
Someone may tell you better but they could have already started to nest, it may be pointless to tell you with not knowing where you live etc but it is illegal to disturb any bird from nesting as soon as the first twig is laid.
If you could i would leave them until later in the year, hopefully the worst of the weather is over for you and your chimney.
I'm in central scotland on the west coast, I think I should maybe err on the side of caution then and do as you suggest and leave them til later in the year. Do you know when the earliest would be that I could get the chimney cleared?
Until someone else can tell you better have a read here, it says they only have one clutch of young www.dalswildlifesite.com/thejackdaw.htm
great thanks a lot! appreciate the help :-)