If a horse stopped for no ascertained reason or if a house martin fell they wondered what it portended.
This bird, besides its noted pugnacity, is an arrant rogue, and invariably takes advantage of the house martin's labour.
To the wall-like cliffs the house martin, Chelidon urbica, often attaches its mud-built cradle.
Very frequently they appropriate the nest of the house martin.
The house martin does not, like the chimney swallow, sweep the ground and water in its flight.