This last Saturday we rescued our new Border Collie, Kimi. Kimi's 3 and has come from a previous family home with another, older, collie and three kids. Our house on the other hand, is just me and my husband, and our cat Sam (also a rescue, also 3, but we got him 2 years ago and he was a stray before that).
Kimi was good as gold the first couple of days and actually seemed to completely contradict a lot of the advice that I'd found doing research beforehand on rescue dogs - he's very friendly and has already started claiming our laps whenever we sit down on the sofa, and he seems completely chilled out on walks - he gets on well with all other dogs so far and doesn't seem bothered around crowds of people.
We've separated off our kitchen and living room as 'Kimi's spot' so that the cat has the run of the rest of the house, as we didn't want him to feel too uprooted (we're working on introducing them, but at the moment they're kept completely separate). The first night, Kimi went to bed in the kitchen and slept through til about 7am no problems. The second night, he went to bed in the kitchen but must have managed to open the sliding doors and get into the living room but again, only woke us up at 7am ish.
Last night, he got into the living room again and then barked through the night - from midnight onwards. I think he stopped for a couple of hours at one point, but then he was going again up until I got up at 6:30 to let him out and feed him his breakfast (I tried to time it in between barks, so that he didn't see me as coming in response to his barking). I then popped back upstairs to get dressed for the morning dog walk and he was barking again within minutes.
The barks weren't non stop but they were consistent, and they ranged from a sort of normal pitch bark to more of a high pitched yip. He didn't howl at any point though. While my husband popped downstairs at midnight just to double check he didn't need to go out, we ignored him the rest of the time as I was concerned that if we responded he'd see it as encouragement/success - we didn't acknowledge the barking at all. (We are completely exhausted today though!)
Some other points that may or not be relevant - we don't have curtains in our front room, but we do live in a very quiet cul de sac. He didn't destroy or chew anything other than some pawing at the door - he also didn't wee or poo inside. We haven't yet been able to find a toy that he likes to chew/cuddle, so he wouldn't really have had anything to distract himself with (we're paying a visit to Pets at home tonight to try a few more things).
Exercise wise, since we got him the routine has been one 45-60 minute walk in the morning in the local park (on retractable lead) along with some en route training e.g. getting him to come and sit when he gets too far ahead/when we're coming up to a crossing. He then gets a 60-90 minute walk (around 5-6pm) including at least 20 mins off-lead running about and playing fetch/doggy ping pong. Then we do 10-20 mins of indoor training/sniffing out treats in the evening with one last 15 minute walk to let him go to the toilet before bedtime at around 10:30.
Basically - I'm just looking for some advice. Does it sound like he needs more exercise/stimulation? Do we need to find him something that he likes to occupy him e.g. frozen kong/chew? Do we need to get curtains? Is it just a change in routine and we need to wait out the next few nights and not respond to the barking? I don't know if it can be SA as he doesn't seem particularly bothered to be left during the day - when my husband popped back at lunch today to double check he was snoozing on the sofa quite happily.
Unfortunately, having him in the bedroom isn't an option as we don't want to take yet another space away from the cat - at least not until (if) they get used to being in the same room peacefully.