I can't take credit for this unique door latch, but I included it on my carriers, because it makes it easier to load and unload your birds. Opening the door is as easy as 1...2...3...
One: Place your index finger in the hole and your thumb on the runner.
Two: Squeeze your fingers and pull the door to the runner, compressing the spring that's between the door and the runner. This releases the latch!
Three: The door can be opened with your index finger. Best of all, you have your other hand free the whole time.