First gun was a single shot .410 and I used it to take jackrabbits, pheasants and partridge back in South Dakota in the late 70s and early 80s.
In the early 90s I picked up a used Win 101 and have used it with 3" 4 shot on opening weekend to kill pheasants still because the birds are less wild then and they sit tighter and shorter shots are common. I still have the gun, but now use it's 20 gauge brother now as my pheasant gun.
I didn't start my own kids on the 410, instead using the 20 gauge mainly due to ease of finding shells for it and volume of shot sent down range to improve odds of bringing down what was in the sites.