Note 43 — Chapter XVII · FURTHER EXPERIENCES WITH EAGLES AND VULTURES.
Reading edition
The Rock-Martins' nests were fixed under the roof and upper ledges of the caves, not unlike Swallows'. Their eggs are white, slightly flecked with grey. At the same date (May 18th) we also obtained a nest of the Blue Rock-Thrush, with five beautiful greenish-blue eggs. The male, during the breeding-season, has a pretty habit of towering up in the air, singing merrily, then falling back among the rocks like a stone.