Birdshot
my take here is they doesn't care about the Philippine eagle. they just want to track down who shot the eagle bcz the sanctuary also hid a dark twist (what they show sa ending)
maya, who shot it, might saw it. so the del c got paranoid bcs they know what's hiding on that sanctuary and the one who shot the eagle might saw the crime they did. that's why they're so eager to know who owns the gun. also, the reason why they're pushing the investigation to the Philippine eagle
and also, domigo would also stop looking for that farmers.
the Philippine eagle is just a cover. this is not about the eagle.