noun
number of birds; bird count
Used as a counter for birds, particularly in poultry farming or bird-related contexts. The reading はすう combines the counter 羽 (わ) with 数 (すう).
See also: 羽 (わ)
この養鶏場の羽数は約一万です。
The number of birds at this poultry farm is about ten thousand.
今年の出荷羽数は昨年より増えた。
The number of birds shipped this year increased compared to last year.