Spend a morning at Sabal Palm Grove Sanctuary which is operated by the National Audubon Society and is located 20 miles east of Brownsville.
It is one of the best places in the Valley to see Buff-bellied hummingbirds.
The native sabal palm forest has a variety of songbirds also.
You can get to the Mexican city of Matamoros over either of two bridges. The main way is over the Gateway International bridge. The other way is the privately owned old railroad bridge that is open to vehicle and pedestrian
Both bridges come out on a major street with many shops and restaurants.
Brownsville is sitting right on the Gulf of Mexico therefore it does get a few tropical storms and hurricanes during some seasons.
The best time to see wading birds is right after a storm when there is water standing everywhere. We happened to be there one year after a storm and it was excellent.
Brownsville's sanitary landfill is located near Port of Brownsville. It is the only known location in the US to spot the Mexican Crow.
This species is a 15” crow with a soft, croaking voice issuing a “gar-lic” sound. They, typically, live in the arid, open country of Northwest Mexico and South Texas. Quite a population is reported near Brownsville, Texas. They nest low in shrubs and native tree species like the mesquite
You can stop by and see how fields of aloe vera are grown.
There is a shop there that will seel you many products made from the plant or take a tour of the factory.