Use "keen-sighted" in a sentence

1. Kite: A keen-sighted bird of prey

2. It seemed to the count that things were beginning to stir in the French camp, and his keen-sighted adjutant confirmed this

3. The keen-sighted mother saw that there was something like coolness between brother and sister, but it was rather jealousy than lack of love

4. But even admitting this was so, it is psychological subtlety, I suppose, that discerns that under certain circumstances I become as bloodthirsty and keen-sighted as a Caucasian eagle, while at the next I am as timid and blind as a mole

5. The man was from Moscow, by trade a stove-maker, sharp and cunning, keen-sighted, not talkative, fragile in appearance, with little flesh on his bones

6. I've sent for you now because I look upon you as a keen-sighted and quick-witted man, qualified to make accurate observations