Busy Mum, lazy Dad
This female Blackbird could not get more meal worms in her beak if she tried and is clearly feeding young. The male just hangs around only eating enough to satisfy himself.
from Graham Bateman: 19 April 2020
P.S.- Later in the day :We had a Robin nesting in the garden but noticed today they were not visiting the nest so checked and it was empty. I reckon the squirrel got the chicks.