Looks rational. Curious to know, what the program really offers. Economically, any activity is just a conversion of one type of assets into another. A charity is essentially converting money into -- e.g., a world without poverty, a world without animal suffering, etc., and in a sense, it's selling the world... and it is still a trade, just trading the delta of the distance to the goal...
Good question -- "But a crucial question to ask is: which animals need our help most?"
"The number of wild animals vastly exceeds that of animals on factory farms, in laboratories, or kept as pets." ( https://infty.xyz/#/en/@/split/topic/94 )