Tape 175-090 contains a range of close-contact calls (=chatter) between the members of a foraging group.In tape 176-170 the group has a young fledgling - its pleading calls are scattered through the harsh chattering calls of the older birds.Tape 154-470 are alarm calls - there is a predator nearby (probably a raptor). At the end, the panic subsides and the birds resume the normal flock chatter.