The pigeon and the ostrich are both birds, the one can fly and the other cannot.

ハトもダチョウも共に鳥だが、前者は飛べるし、後者は飛べない。

Tanaka Corpus

The ostrich has wings, but it cannot fly.

ダチョウは羽があるが飛べない。

Tanaka Corpus

That's why ostrich meat costs more than twice as much as beef and pork.

そんなわけでダチョウの肉は牛肉や豚肉の２倍以上の値段となる。

Tanaka Corpus