What type of birds were mentioned as hosting in the RGV wildlife refugee?

The chachalaca birds are notable for their presence in the RGV (Rio Grande Valley) wildlife refuge, as they are indigenous to the region and thrive in its habitats. These birds are known for their distinctive calls and social behavior, often found in groups. Their significance in the ecosystem of the RGV wildlife refuge highlights the area's rich biodiversity, making them a focal point for visitors interested in the natural wildlife and local birdwatching opportunities. While other bird species like pelicans and starlings may inhabit various regions, they are not specifically tied to the RGV wildlife refuge in the same way chachalacas are. Canaries, typically found in captivity or in specific habitats, do not naturally occur in this area, making chachalacas the correct choice for this question.