I'm having the same problem at the mo, Woody (11yr old Lab) is normally very good with dogs and has been used to pups coming to the house for years and got on very well with them. However Isla (8 week old Springer) is not welcome it would seem and he's been getting a bit shirty with her. I do think though that introducing a pup to a 16 month old dog will be a lot easier than to elderly dogs like ours. Older dogs find it harder to adjust I think.

[Flickitysplit=QUOTE]I'm new to this so apologies if I'm supposed to start a new thread (also please let me know) but you've got me thinking... Jake is a rescue dog and we've had him since November always with the intention of getting a second for company(I totally agree with all the thoughts re company etc) - does anybody have experience of adding a second rescue dog to the first? I can't have a puppy as I'm at work in the day.[/QUOTE]
I've got two rescues and I would recommend going to a well known rescue centre like Dogstrust as they'll give you a lot of advice on the best type of dog to get temperament and age wise.
We got Woody at the age of 4 when Pickles was 8 and they've got on fine from day one, but that's mainly because Woody is a very laid back dog. Which is perfect for Pickles as he's not all that keen on four legged creatures.

Thank you for that Rip.. nice to hear it's worked out for you and yours!