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They are specialist feeders on conifer cones, and the unusual bill shape is an adaptation to assist the extraction of the seeds from the cone. The two-barred crossbill has a strong preference for larch ( Larix ), in Eurosiberia using Siberian larch ( Larix sibirica ) and Dahurian larch ( L. gmelinii ), and in North America Tamarack larch ( L ...
A conifer cone, or in formal botanical usage a strobilus, pl.: strobili, is a seed-bearing organ on gymnosperm plants, especially in conifers and cycads. They are usually woody and variously conic, cylindrical, ovoid, to globular, and have scales and bracts arranged around a central axis, but can be fleshy and berry-like.
The different species specialize in feeding on different conifer species, with the bill shape optimized for opening that species of conifer. This is achieved by inserting the bill between the conifer cone scales and twisting the lower mandible towards the side to which it crosses, enabling the bird to extract the seed at the bottom of the scale ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 18 February 2025. Extinct order of birds This article is about the extinct New Zealand birds known as moa. For other uses, see Moa (disambiguation). Moa Temporal range: Miocene – Holocene, 17–0.0006 Ma Pre๊ ๊ O S D C P T J K Pg N North Island giant moa skeleton Scientific classification Domain ...
The bush moa is the smallest known species of moa, [5] having only been slightly taller than a turkey (approx. 1.3 metres (51 in) tall). A slender bird, it is estimated to have weighed around 30 kilograms (66 lb). [6]
Climber Alex Lemnah, 29, collects seeds from incense cedar pine cones on Oct. 12. An arborist and former firefighter, he grew up in the tree-felling business and plays in a band called Lumbercat.
Birds of the crow family, Corvidae, are the primary distributor of the conifer seeds. These birds are known to cache 32,000 pine seeds and transport the seeds as far as 12–22 km (7.5–13.7 mi) from the source. The birds store the seeds in the soil at depths of 2–3 cm (3 ⁄ 4 – 1 + 1 ⁄ 4 in) under conditions which favor germination. [27]
A protester holds up a large black power raised fist in the middle of the crowd that gathered at Columbus Circle in New York City for a Black Lives Matter Protest spurred by the death of George Floyd.