CPS involvement

I have a cousin that has 5 kids. She doesn’t choose the bathe them, they live off of fast food (when they eat), they are honestly in my eyes neglected. PLEASE tell me if I’m overreacting before I call CPS. Their floors are fallen in, the have mold and caked with old food. There’s a big hole in the middle of the kitchen. Trash up to the door frame (inside and out), it smells horrible. The toilets are clogged and gross (they don’t flush them anymore at all) too top it off, they took a picture of *32* mice they found in their dresser drawer.. ALIVE. Sent my oldest sibling a picture of it and was talking about how her kids were putting them in their pocket. I have the picture and it’s ridiculous. Will I remain anonymous if I call? I’m a minor so I’m not sure if I’m reliable technically. Please help.*** had no idea where to post*