Now we come to two of the four native Skylarks. Who has not, while lying on his back on the grass enjoying a rest in the warm sunshine, felt pleasure at the beautiful song of the Rufous Song-Lark as it soars singing away so high overhead? The British Skylark often receives the credit for the harmony of our four Skylarks. Two belong to this family, and two come later with the Larks and Pipits. One is larger and darker on the breast, hence the name Black-breasted Song-Lark. I saw many of these birds, when examining the glacial deposits at Hallet's Cove, near Adelaide. As there was a continuous chorus of these fine songsters above the crops, the reason for the name Harvest Birds was apparent. The Thrush family (_Turdidae_) includes the British Song-Thrush, Blackbird, Nightingale, and many other famous songsters, The Australian Mountain-Thrush is larger and more prettily marked, but is not such a good songster as its European cousin--the Song-Thrush. It, however, has one of its calls closely similar to one of the calls of its more famous relative. It is a quiet, shy bird, though I walked within five feet of one this morning as it was busy digging up worms on the lawn in the Melbourne Botanic Gardens. I left it at work pleased that my presence had caused no feeling of fear in so beautiful and so shy a bird. Its beautiful moss-covered nest is built even so early as July. It flies little, preferring to keep near the dark scrubs, especially the tea-tree scrub along the coast. The Song-Thrush and Blackbird have been successfully introduced, and they are common in suburban gardens. Their delightful song makes richer the lives of busy city dwellers, though their attentions to soft fruits are not always appreciated. For sweetness and fulness of notes, however, these introduced birds cannot compare with our Harmonious Shrike-Thrush (315), deservedly named _harmonica_ by Latham, a British ornithologist. The call of the latter bird, however, is not so continuous as that of the introduced birds.