5½ yards =1 perch, a unit of LENGTH.
2 gallons = 1 peck, a unit of VOLUME
Volume and Length units can not be equated.
0.028 hectares = 11.07 perches.
40 perches in one rood.
One acre is 160 perches.
160
40
There are 16 noggins in a peck.
10 perch is one larcham
Eight quarts are in one peck
37.24 cups in a peck
A peck is a measure used for dry goods. 1 peck=22 gallons (dry not liquid gallons). However many cucumbers = 22 dry gallons is a peck.
The Perch is a rather archaic term- there are 40 square Perches to a Rood (not root). See the link below for more information.
A woodpecker could peck no peckers because no woodpeckers would peck peckers.