
Photo: Kim, Hyun-tae · CC BY 4.0 (May be cropped or resized)
Tringa glareola
Clutch size
4 pale-green eggs, laid March to May
Incubation period
22–23 days
The wood sandpiper lays four pale-green eggs between March and May, incubated by both sexes beginning with the last egg. They hatch after 22 to 23 days and the young fledge at around 30 days (Wikipedia, general species account).
Adults and immatures that build fuel reserves of about 50% of their lean body mass can potentially cross 2,397 to 4,490km in one non-stop flight. The source read for the Bhutan guide gives no plumage, range or habitat detail, so none is stated.