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With an average length of 20 cm (7.9 in) and a wingspan of up to 38 cm (15 in), the purple martin is the largest amongst the 90 odd species in the family Hirundinidae. [9] Measurement ranges: [10] Length: 7.5–7.9 in (19–20 cm) Weight: 1.6–2.1 oz (45–60 g) Wingspan: 15.3–16.1 in (39–41 cm) Purple martins are sexually dimorphic. Adult ...
The Purple Martin Conservation Association tracks the arrival of the birds with the help of about 3,500 volunteers. A smaller group of about 220 volunteers monitors the nests. For more information ...
This is a unique-looking barrel connector, apparently intended for providing a DC output jack (most DC jacks are used for power input).. Possibly available in multiple voltage ranges, the one for voltage classification 2 (3.15 to 6.3 V) has an outside diameter of 4.75 mm and a protruding pin of 2.5 mm diameter.
Color-coded PS/2 connection ports (purple for keyboards and green for mice) on the rear of a personal computer An S-video connector: because this is a female connector, Pin 1 is at lower right. Mini-DIN connectors are 9.5 millimetres (3 ⁄ 8 in) in diameter and come in seven patterns, with the number of pins from three to nine. Each pattern is ...
People interested in learning more about how to attract and care for Purple Martins can receive a free booklet by contacting the Purple Martin Conservation Association by emailing info ...
The Cuban martin nests in cavities in banks and buildings, or old woodpecker holes. 3-6 eggs are laid in the lined nest, and incubated for 15 days, with another 26–27 to fledging. Just as the purple martin, this species may compete with other passerines for nesting cavities.
Below is a comprehensive drill and tap size chart for all drills and taps: Inch, imperial, and metric, up to 36.5 millimetres (1.44 in) in diameter. In manufactured parts, holes with female screw threads are often needed; they accept male screws to facilitate the building and fastening of a finished assembly.
Next to each pipe, a finger hole is made to activate the free-reed by opening and closing the hole and inhalation (mainly) and exhalation. [1] Slight variations in shape, size, height of the gourd mouth organ can be observed among different minorities groups, for instance, the bamboo pipes used in Hei Miao can go up to fourteen feet high with ...
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