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Myriad2112, Whickerman, jules77, YvonneM, garner, messyjessy12, pompei595, caveman69, Psychick, Cetti lankeela and leelapops,
Thank you all so much for your replies - they're all so positive about these lovely dogs. I was in touch with the Irish dog rescue centre today, and Bernie has promised to get back to me. She suggested two dogs (or bitches), as I am at work during the week, and says they would be good company for each other.
However, I'll have to check this out with my brother, who has been just wonderful, caring for all my dogs over the past eight years. He looks after them when I have to go overseas, often for 3 - 4 weeks at a time. I don't know how he will feel about the responsibility of 2 greyhounds as well as my old Springer (another found dog, known as The Bone Collector) whom he has adopted and his own very exuberant and loving young Dobermann.
I lost my 9 year-old Lab/Collie 10 days ago - it was very unexpected. She had been with me since she was a little stray of about 8 weeks, and could read every nuance of my body language. She was quite content on her own, and with children, adults and other dogs.
I am not trying to replace her (no dog could), but I feel I could give a dog a very happy life.
I'll let you know what happens.
Thanks again, everyone.