Read the following premise and answer if the hypothesis is true.
Sierpe River (Spanish: "Rio Sierpe") is a river of Costa Rica. Boat traffic is common with both locals and tourists. A broad range of wildlife can be seen from the American Crocodile, various other reptile species, and exotic fish and birds. It joins the Rio Terraba.
Hypothesis: Rio Sierpe has more crocs than birds. Is the answer "Yes", "No", or "It's impossible to say"? Respond with only the answer and no additional text.
It's impossible to say
It's impossible to say. The hypothesis does not provide enough information to determine which species is more abundant in Rio Sierpe.