1830. R. Dawson, `Present State of Australia':

[p. 110]: "Herds of kangaroos."

[p. 139]: "An immense herd of kangaroos."

[p. 196]: "Flocks of kangaroos of every size."

1835. T. B. Wilson, `Voyage round the World,' p. 243:

"We started several flocks of kangaroos."

1836. Dec. 26, Letter in `Three Years' Practical Experience of a Settler in New South Wales,' p.44:

"A man buying a flock of sheep, or a herd of cattle . . . While I watched the mop I had collected." [This, thus spelt, seems the earliest instance.]

1847. L. Leichhardt, `Overland Expedition,' p. 6:

"Droves of kangaroos."