Do not shoot sparrows with 40fpe .25.
I have birds that land on my pool waterfall and bathe, I'm mainly concerned with the rock and eurasian collared pigeons, which are fair game here, but got a sparrow (also fair game) and it made a mess. The corpse, 1 minute after shooting, looked like someone had stepped on it and smooshed it with their feet and there were feathers all over the place.
Now considering a .177... At the close range they are, my .25 might be too much even for the big fat pigeons, and the .22 too much for sparrows.
I have birds that land on my pool waterfall and bathe, I'm mainly concerned with the rock and eurasian collared pigeons, which are fair game here, but got a sparrow (also fair game) and it made a mess. The corpse, 1 minute after shooting, looked like someone had stepped on it and smooshed it with their feet and there were feathers all over the place.
Now considering a .177... At the close range they are, my .25 might be too much even for the big fat pigeons, and the .22 too much for sparrows.