I stopped by the National Butterfly Center,
about an hour north of Brownsville, but there had just been a torrential downpour, so all the butterflies
had taken cover and were waiting for their wings to dry. I did manage to see one lonely butterfly; maybe 2. Other pictures here.
You can see how wet it was. It must be truly glorious when the place is dry and kinetic with color. But I learned that the
Center is threatened by Trump's build-a-wall plans, where he wants to
build hundreds of feet in from the River, clearing out the vegetation and habitat, and creating a 24-hour day with floodlights.
The guy at the center told me it would be disastrous ecologically. He doesn't oppose a wall, but can't understand why they don't simply build the wall at the river and spare the wildlife. The issue will be decided (surprise) in court.
There is considerable evidence of the "wall issue," and more generally, stepped up border enforcement.
From what I saw, it would be an exaggeration to say the border has been
militarized, but the Border Patrol is definitely a presence, the white and green CBP trucks ubiquitous.
I was particularly struck by this scene... a CBP truck standing guard (on the left), silently menacing would-be intruders, near the entrance to the Sabal Palm Sanctuary. Sanctuary is only for trees. I suppose the birds and other creatures are ok too.