It is for this reason the trust has introduced its community cat desexing scheme, which is running again this year.
Karma says the scheme offers discounted female cat desexing for cat owners who have a community services or gold card and live in the Stratford District.
"We encourage people to call into The Scratching Post to apply for the scheme, or simply to find out more about it."
Karma says the store on Broadway has been busy during the school holidays, with MJ, Radar and Chopper getting lots of attention from the younger visitors to the shop.
"The three kittens love all the attention. They come right up to talk to the children. They really do like company."
Karma says the three tabby kittens were found, along with their sister, on a rural property six weeks ago.
They were taken in by the team at The Scratching Post and placed in foster care until they were old enough to be rehomed.
Their sister was the first to be adopted, leaving the three boys to play together while they wait their turn.
"They were fostered in a home which has other cats as well as dogs," says Karma. "So they are used to other animals and household noises or barking. They are really social and love children. It is testament to the great work of their foster carers as to how friendly they are, they are going to be fantastic companions for whoever adopts them."
The kittens come into The Scratching Post every weekday the store is open, and Karma is hopeful they will all soon be adopted.
"They are all lovely kittens and are going to grow up to be fantastic companions. All of them are very cuddly and seek out human attention, so if anyone is considering getting a new pet cat, please call in and have a look at the boys."
The Scratching Post, 259 Broadway. Donations always gratefully received. Open Tuesday-Friday, 10am-3pm and Saturdays 10am-12.30pm. Kittens in store Tuesdays-Fridays.