Have you contacted vet offices and low cost neuter/spay clinics? Since he is intact and someone may be keeping him, the finder may go and have him neutered.
Jennifer
Isis has been lost since 7/2 near the Broad Ripple Dog Park area. She was scared of the fireworks and ran off. She is not wearing a collar nor is she microchipped. I assume she is still missing. If anyone lives close, perhaps a search team can be put together.
Here is the information:
Jennifer
A response on the Facebook page stated that this dog is still lost!
Jennifer