Title - Pinpointing the Van

Question - How did Snowball locate the animal control van?

Answer - A network system amongst the strays

Evidence - The Alley Cats

Theory - I believe all of the strays have a network system. Different groups, such as the Flushed Pets and the Alley Cats keep close touch and alert each other if there's a stray in danger. Someone might've seen Ripper get snatched by animal control and alerted Snowball. The rabbit then had other strays keep tabs on the van while he prepared a rescue mission.

Unanswered Questions - Are there other groups of strays besides the Flushed Pers and the Alley Cats?

Thank you