A Pied Avocet wading in shallow water in the Ngorongoro Crater, showing its distinct black and white plumage and upturned bill.
The Elegant Scythe: The Precision of the Pied Avocet
I think the most striking feature of the Pied Avocet (Recurvirostra avosetta) is its long, slender, and distinctly upturned bill. While it might look like an accident, this recurved beak is actually a highly specialized precision tool.
The name of the genus, Recurvirostra, literally translates from Latin as “bent-back bill,” perfectly describing the upward sweep toward the tip. This unique shape is more than just an aesthetic choice; it is specifically adapted for a feeding technique known as scything.
What does scything look like?
Unlike many other waders that peck vertically into mud, the Pied Avocet wades through shallow water and sweeps its slightly open bill from side to side in a rhythmic, scythe-like motion. Here’s what’s amazing:
The bill is lined with sensitive nerve endings, allowing the bird to detect tiny invertebrates like crustaceans, worms, and insect larvae by touch rather than just sight.
The thin, curved design reduces drag as the bird “swishes” through the water, sometimes at a rate of up to 46 sweeps per minute.
Comb-like structures called lamellae inside the bill help filter out food bits from the water and silt as the bird forages.
I photographed this individual utilizing its “scythe” within the Ngorongoro Crater in Tanzania. These migratory birds often winter in Africa, finding the enclosed caldera’s soda water to be the perfect habitat for harvesting insects and crustaceans.
The Pied Avocet scythes the water of Lake Magadi in Tanzania’s Ngorongoro Crater.
Join us in 2027
We are heading back to the savanna from June 3-13, 2027. If you want to photograph amazing species like the Pied Avocet in their natural habitat, email us at BibleLandExplorer@gmail.com for details.