A singular flight of strange birds, was noticed at Guildford about the year 1833, during the time when the corn was green: they arrived in an innumerable host, and were so tame as to be easily taken by hand. In general appearance they resembled the land-rail, but were larger, and quite as heavy on the wing. They disappeared in the same mysterious manner as they arrived, and have never since repeated their visit. Were these birds visitors from the interior, or had they just arrived at the end of a migratory journey from some distant country? It is to be regretted that no specimen of them was to be obtained, as it might have helped to clear an interesting subject from doubt. THE DARLING RANGE. The change in ascending this range, from the alluvium near its base, to the primitive formation of which it is itself composed, is very remarkable. Shells still common on the adjacent coasts were met with 14 feet below the surface, near the foot of the range, by one of the colonists when sinking a well. In the same locality deposits of sand may be seen, having that particular wavy appearance which is always noticed upon the sea beach. These appearances, as well as the general aspect of the adjacent country, seem to justify the conclusion I arrived at while on the spot, that the land which now intervenes between the mountains and the shore, is a comparatively recent conquest from the sea. The character of this land may be thus described: The first three miles from the coast is occupied with ridges of hills, from 100 to 200 feet high, of calcareous limestone formation, cropping out in such innumerable points and odd shapes as to be almost impassable. Some of these lumps resemble a large barnacle; both lumps and points are covered with long, coarse grass, and thus concealed, become a great hindrance to the pedestrian, who is constantly wounded by them. To these ridges succeed sandy forest land and low hills, except on the banks of the rivulets, where a belt of alluvial soil is to be found. The Darling range traverses the whole of Western Australia in a direction, generally speaking, north and south. It appears to subside towards the north, and its greatest elevation is nearly 2,000 feet. The cliffs of the coast at the mouth of Swan River, have a most singular appearance, as though covered with thousands of roots, twisted together into a species of network. A SINGULAR CLIFF.