Cedar Waxwings are often heard before they’re seen, so learn their high-pitched call notes. Look for them low in berry bushes, high in evergreens, or along rivers and over ponds. Be sure to check big flocks of small birds: waxwings are similar to starlings in size and shape, and often form big unruly flocks that grow, shrink, divide, and rejoin like starling flocks.
The name "waxwing" comes from the waxy red secretions found on the tips of the secondaries of some birds. The exact function of these tips is not known, but they may help attract mates.
Information from the All About Birds website, , © Cornell Lab of Ornithology.