Love on the Line by Deeanne Gist
Deeanne Gist does a great job writing historical fiction. Her stories are entertaining and enlightening.
Love on the Line is set in rural Texas where certain train robbers are held in high regard, making cooperation between the locals and the Texas Rangers hard to come by.
Georgie Gail is one of a few female switchboard operators, and has a lot to prove. She also has a love for birds, and is determined to save her feathered friends from the popular fashions of the day. (I haven't thought much about birding, but I just watched the movie "The Big Year" before reading this, so the birding aspects stood out even more than they otherwise might have.)
I was very entertained by the issues in the small town, and loved Georgie's strong personality and Lucious' undercover work. Fun read.