Birdfoot's Grampa by Joseph Bruchac tells about the Grampa who considers every life on earth important. Showing such an act of kindness by saving a toad, it depicts the theme to live selflessly.
In the above excerpt, the narrator asks his Grampa to stop saving toads as he won't be able to save them all and they have "got places to go". From this excerpt, the reader is most likely to infer that there are many toads.