It's an awful scene at White Rock lake.  My friend Charles has been caring and rehabilitating these guys for the last 8 or more years.  He doesn't get paid for doing this so he works hard as a self employed plumber..... And gives it all to these guys.  EVERY. NIGHT OF THE WEEK.  
In 2009 11 of the geese were used as target practice.  They were snuck up on during the night and shot by a coward who left them to die slow agonizing deaths.  Their bodies littered many different parts of the lake.  
I had set up an interview by our local ABC  stations morning show so Charles could tell his story and let people know that leaving birds here isn't ok.  
There are birds with broken bills, bumblefoot, angel wing, wet feather, prolapsed penises, over mating drownings, and neurological issues all over sunset bay.  These are only seeming to occur in the domesticated buffs, swedes, Muscovy, appleyards, Pekin, and runners...they are dying a little each day.
We cannot remove them by law.  Once they have been placed at the lake try become the property of The City Of Dallas.
We are working in this...