His whole manner was that of one who was in the first stage of a most interesting event.

But as Ned was looking at him a light suddenly leaped in the calm eye.
"Look there! look there!" said Davy Crockett, pointing a long finger.
"We'll need food in that Alamo place, an' behold it on the hoof!" About forty cattle had been grazing on the plain.

They had suddenly gathered in a bunch, startled by the appearance of so many people, and of galloping horsemen.
"We'll take 'em with us! We'll need 'em! Say we can do it, Colonel!" shouted Crockett to Travis.
Travis nodded.
"Come on, Ned," cried Crockett, "an' come on the rest of you fleet-footed fellows! Every mother's son of you has driv' the cows home before in his time, an' now you kin do it again!" A dozen swift Texans ran forward with shouts, Ned and Davy Crockett at their head.

Crockett was right.

This was work that every one of them knew how to do.