The idea of the bird opening for white is:
1 Deny black use of e5;
2 white plants his knight on e5 as part of his king side attack;
3 If black exchanges off the e5 knight (& white can’t replace it with his other knight or dark square bishop) then re-taking on e5 (with the f-pawn) cramps black’s kingside & opens for white the f file to get more pieces into the king side attack, including rook lifts to f3, g3 or h3; sometimes even f6.
4. White should fianchetto his dark square bishop so it bears down on e5, f6 & especially g7. I won hundreds of games bc of the power of this bishop.
5. White basically aims to play a good form of the classical Dutch defense up a tempo. The Bird is playable against both king’s Indian defense d6 set-ups & e6/d5 set ups though the former requires special attention to move order & knowledge of tactical motifs.
6 White ends up with an extra pawn &/or a better game against popular antidote for black - the From Gambit, if white plays correctly.
7 the opening is offbeat & tactical; often white wins quickly.
8. The main drawback is its limited scope - if black plays the best lines correctly it’s hard for white to mix it up & just one misstep & black may grab too much space etc.
Hope that summary helps!
No Preusseagro you can beat me of course but not with Froms gambit.
I switch to the good old KG.
I'd rather go into a from's.