SWALLOWS

Barn Swallow (Seen in The Woodlands, TX)
Males have darker breasts and throats than the females. The barn swallow's long, very forked tail distinguishes it from other. 
With this buffy breast and shorter tail, this is probably a juvenile. We took several photos, but very soon, he told us to "buzz off!"
Cave Swallow
 
These swallows look like the Barn Swallow, but their tail is flat across the end, not split.  
Purple Martin (Seen in The Woodlands, TX)