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The willow ptarmigan is a medium to large ground-dwelling bird and is the most numerous of the three species of ptarmigan. Males and females are about the same size, the adult length varying between 35 and 44 centimetres (14 and 17 in) with a wingspan ranging from 60 and 65 centimetres (24 and 26 in). The weight is 430 to 810 grams (15 to 29 oz ...
The willow warbler is a typical leaf warbler in appearance, 11–12.5 cm (4.3–4.9 in) long and 7–15 g (0.25–0.53 oz) weight. It is greenish brown above and off-white to yellowish below; the wings are plain greenish-brown with no wingbars. Juveniles are yellower below than adults. It is very similar to the chiffchaff, but non-singing birds ...
[2] [6] They were first described by the German zoologist Johann August Ephraim Goeze in 1773, who called them Kleiner Wasserbär (' little water bear '). [7] In 1777, the Italian biologist Lazzaro Spallanzani named them Tardigrada ( / t ɑːr ˈ d ɪ ɡ r ə d ə / ), which means "slow steppers".
Salix alba, the white willow, is a species of willow native to Europe and western and central Asia. [ 2 ] [ 3 ] The name derives from the white tone to the undersides of the leaves. It is a medium to large deciduous tree growing up to 10–30 m tall, with a trunk up to 1 m diameter and an irregular, often-leaning crown.
Cornus subg. Kraniopsis. Cornus sericea, the red osier or red-osier dogwood, [2] is a species of flowering plant in the family Cornaceae, native to much of North America. It has sometimes been considered a synonym of the Asian species Cornus alba. Other names include red brush, red willow, [3] [4] [5] redstem dogwood, [3] [5] redtwig dogwood ...
Corythucha elegans, the willow lace bug, is a bug species in the family Tingidae found on willows in North America. Rhabdophaga rosaria is a type of gall found on willows. Rust, caused by fungi of genus Melampsora, is known to damage leaves of willows, covering them with orange spots.
Nematus oligospilus, commonly known as the willow sawfly, is a species of sawfly in the family Tenthredinidae. Native to central and northern Europe and Asia, it was first recorded in South America in the 1980s and New Zealand in 1997, and has also been introduced to Australia, South Africa and Lesotho. Its larvae feed on the leaves of various ...
Salix scouleriana is a deciduous shrub or small tree, depending on the environment, usually with multiple stems that reach 2 to 7 metres ( to 23 ft) in height in dry, cold, high elevations, and other difficult environments, and 10 to 20 m (33 to 66 ft) or more in favorable sites. The stems are straight and support few branches generally ...