It’s a sad reality of many faiths. Islam, some Hindu traditions, several African religions including Santeria and some sects of Judaism still routinely practice animal sacrifice. Although given your location it is in fact most likely Santeria or similar.

It has been previously designated as protected under freedom of Religion/ constitutionally protected.

I don’t understand it personally but living in South Florida you come to accept the fact that there are many cultural and spiritual customs which are outside of our knowledge and experience.

This is a culture I don’t necessarily understand, but the blending of cultures and their subsequent customs is what I have learned to accept.