It's the Hunter Valley Avicultural Society's annual bird sale on Saturday, with bird lovers from most states expected to be on hand.

All up there will be more than 4000 birds of all colours and sizes for sale at Cessnock's Civic Indoor Sports Centre - everything from the humble double bar finch to the more exotic varieties of macaws parrots.

There will also be trade displays and refreshments available.

The bird sale will run from 10am to 2pm and public entry is $3 per person.

For more information go to the Hunter Valley Avicultural Society's facebook page.