Definition of "bleating"

And Samuel said, What meaneth then this bleating of the sheep in mine ears, and the lowing of the oxen which I hear?

1611, The Bible, 1 Samuel 15:14

Both men seemed to enjoy these contests, always laced with the tension caused by constant government bleating about the ABC's left-wing bias.

2008, Wayne Errington, Peter Van Onselen, John Winston Howard: The Definitive Biography, page 317