Mob-eating Eagle

This would make mob farming, Just a little bit harder
So how about an eagle, Which only spawns at normal difficulty, That Attacks 
Baby chickens, Baby wolf,Normal parrots, Baby cats,Baby cows, baby pig, ETC...
 However, It has a 20% chance to spawn near the human's bed,
40% If a mob was bred by player at previous day, It's Neutral with the player, Unless the player of course attacks it, The only way to prevent it from killing a mob
, Is by building the mob farm INSIDE another building,
Or just preventing them from leaving the house
, An eagle flies away as soon as its night time,
It has 15% chance to come back, If it came on the previous day,
If a mob was bred and the eagle came on the previous day,
the chance jumps to 25%,
An eagle usually spawns untamed, It can be tamed using meat,
However, If it's tamed it will attack : A mob that Attacked the player,
Other baby mobs such as baby pig But it will take whatever drops and give it to the player and A mob that the player attacked, That's how I imagine an eagle in minecraft