The Buddhist practice of releasing animals back into nature is one of the most tangible forms of compassion. But it must be done correctly — otherwise the intention is beautiful and the outcome is harm.
A few principles: release eels and fish into rivers, not commercially sold containers where they’ll simply be recaptured. Release birds during daylight hours so they can orient themselves. Avoid intermediaries who profit by recapturing. And do it quietly — “the right hand need not know what the left does.”
Sincere, mindful compassionate action generates its own reward. The ritual matters less than the intention behind it.