The bird on the roof is a crow. ✬

The crow flew away. ✬

Tom took another shot at the crow, but missed again. ✬

It's not a crow. It's a raven. ✬

Tom didn't hear the rooster crow. ✬

I didn't hear the rooster crow. ✬

It isn't a crow. It's a raven. ✬

It's a crow's nest. ✬

The crow was cawing loudly. ✬

Is that a crow? ✬