Saturday 28 October 2023

Aylostera (= Rebutia) spinosissima Backb

Aylostera (= Rebutia) spinosissima Backb is a thickly white-spined cactus from the Salta region in Argentina. The flowers appear early in spring. The older plants blossom more profusely than younger ones and they are often completely hidden under an avalanche of blooms. The fruits are minute and bristly, a characteristic trait of the cacti in the subgenus Aylostera. The most handsome species are A. heliosa with short, white, adpressed spines and orange flowers, and the similar A. albopectinata with red flowers. Both can be grafted. Cultivation of other species of this subgenus is usually easy if a loam-based potting mix, plenty of sunlight, and fresh air in summer are provided. At this time of the year, they can be placed outdoors. In winter keep cool at 10° C.

Aylostera (= Rebutia) spinosissima Backb

Tuesday 17 October 2023

HEN-HAWK, or CHICKEN-HAWK

HEN-HAWK, or CHICKEN-HAWK, is any kind of hawk that attacks poultry or is supposed to do so. Two or three large buzzard hawks are popularly so-called in the eastern United States, and at least two smaller falcons. In the West, and in other parts of the English-speaking world, there are other species of the same repute, more or less well deserved. In England, the analog of the American marshhawk is known as "hen-harrier."

Certainly, everywhere kills much poultry where it is not safely housed at night. In North America, the best-known hen hawks are the broad-winged, red-tailed, and red-shouldered. They are comparatively harmless to poultry, however, feeding mainly on squirrels, mice, frogs, etc. The broad-wing (Buteo pennsylvanicus) is one of the most familiar of our hawks, breeding numerously in the woods all over the country. It is 16 inches long, with a tail of 7 inches, and a wing of 11 inches.

The upper parts are dull umber-brown, the tail almost black, crossed by two to four pale brown bands; the lower parts are dull rufous brown, nearly unbroken on the breast. It is rather sluggish in temperament, though capable of swift and bold action, and feeds mainly on mice, but will now and then seize young chickens, ducklings, etc. On the whole, as in the case of the other buzzard-hawks, it is of more service than injury to the agriculturist. The real culprits are two small, swift, agile falcons, Cooper's (Accipiter cooperi), and the sharp-shin (A. velox).

The former is nearly two feet long, grayish-brown on the upper parts and white below, with the sides and breast barred with dusky red-brown and tail barred with blackish. The sharp-shin has much the same colors, but is little more than half as large, and is further distinguished by the triangular shape of the tarsus, giving it an edge in front. These bold and active falcons live mainly on birds, and on farms prey largely on chickens and house sparrows, compensating somewhat for the former by killing the latter. Consult Fisher, 'Hawks and Owls of the United States'