There is no way to check right now, but there are warning signs. If it doesn't have the Kalos Pentagon, then it comes from an older game, where it was easy to hack Pokemon. If it has a big series of max IVs, it's probably hacked (ie a 6IV Metagross or a 5IV Latias).
Tufted Titmouse are regulars at backyard bird feeders, especially in winter. They prefer sunflower seeds but will eat suet, peanuts, and other seeds as well. Find out more about what this bird likes to eat and what feeder is best by using the Project FeederWatch Common Feeder Birds bird list.
Still, I would guess that the titmouse enjoys more relative anonymity than other equally abundant birds because it is a birderâs bird. By this, I mean that it lacks the outsize effrontery of corvids, pigeons, and starlings. It doesnât inspire the admiration that raptors and other big birds do.