The trouble with teenagers

Since we first started feeding the magpies, the children have turned into the equivalent of spoilt-brat teenagers.

They're quite capable of flying and scavenging for themselves, but still they insist on squawking at their parents until they get mouth-fed:

When the two young ones get together, they fight.
Seriously. They lock feet and scream (what I presume are obscenities) at each other:

Given the accelerated life-cycle, they should grow out of this phase in a day or two.