Which park has better wildlife sightings?
Yala is the stronger leopard choice. Udawalawe is the stronger elephant choice. Both have birds, crocodiles, and dry-zone landscapes, but the emotional promise of each safari is different.

Short answer: choose Yala for leopard-focused safari energy; choose Udawalawe for reliable elephant sightings, families, and a calmer first safari.
Yala is the stronger leopard choice. Udawalawe is the stronger elephant choice. Both have birds, crocodiles, and dry-zone landscapes, but the emotional promise of each safari is different.
Udawalawe is often easier because the experience is more predictable. Yala needs more attention to gate choice, guide quality, season, and crowd expectations.
Yes, but most short trips should pick one park and save travel time. Longer south-coast itineraries can connect Yala, Udawalawe, and a beach stop if the route is planned carefully.