Problem is, a lot of products that are rated non-toxic to humans are
still toxic to birds. That's why I mentioned aquarium silicone
sealer, which, being safe for fish, is probably a safer bet for
birds. But there, too, there' s no certainty. Whatever you use, make
sure it's well-cured before the birds drink from it, and change the
water often, especially at first. I wonder, too, if bees wax might
form enough of a seal -- just depends on the nature of the leaks. - Marc

At 11:10 PM 9/8/2006, Joemeche at aol.com wrote:
>In a message dated 9/8/2006 10:39:06 P.M. Pacific Standard Time,
>tweeters at dartfrogmedia.com writes:
> > A friend of ours with a leaky concrete birdbath has asked for advice about
> > something non-toxic to birds to use in making his birdbath hold water
> > again. Is this a place I can ask for help about that? Does anyone know
> > what he could use or know someone else who might have an idea?
>
>Try the UGL DRYLOK website at http://www.ugl.com/DRYLOKFrame.html
>for a number of products that are specifically for repairing cracks
>in concrete, stucco, masonry, etc. You can probably shop around the
>product line and find something suitable.
>
>Joe Meche
>Bellingham