Editing Redwing (section)

==Behaviour and ecology==
While migrating and wintering, redwing thrushes often form a loose flock. The size of the flock varies between 10 and at least 200 birds. They often feed together with [[fieldfare]]s, [[common blackbird]]s  and [[European starling|starlings]]. Sometimes, they will also feed alongside [[mistle thrush]]es, [[song thrush]]es, and [[ring ouzel]]s.<ref name=bwpc/><ref name=hbw/><ref name=thrushes/> Unlike the song thrush, the more nomadic redwing does not tend to return regularly to the same wintering areas.<ref name=BWP>{{cite book | editor-last = Snow   | editor-first =  David  |editor2-last = Perrins |editor2-first=Christopher M. | title = The Birds of the Western Palearctic concise edition (2 volumes) | publisher = Oxford University Press |year = 1998| location =Oxford | isbn = 0-19-854099-X }} p1215–1218</ref>

Migration occurs between autumn and early winter, and the birds often move at night. Oftentimes, they may make a "Tseep" contact call that can carry a long distance.<ref name="BWP" />

===Breeding===
[[File:Turdus iliacus MWNH 2239.JPG|left|thumb|Egg, Collection [[Museum Wiesbaden]]]]
[[Image:Redwing nest.jpg|thumb|Nests are often constructed on the ground.]]
The redwing thrush breeds in [[conifer]] and [[birch]] forests, and the [[tundra]]. Redwings nest in shrubs or on the ground, laying four to six [[bird egg|eggs]] in a neat nest. The eggs are typically 2.6&nbsp;x&nbsp;1.9 centimetres in size and weigh 4.6&nbsp;grammes, of which 5% is shell,<ref name = BTO/> and which hatch after 12–13 days. The chicks fledge 12–15 days after hatching, but the young remain dependent on their parents for another 14 days before they leave the nest.<ref name=bwpc/><ref name=hbw/><ref name=thrushes/>

===Feeding===
The thrush is omnivorous, eating a wide range of [[insect]]s and [[earthworm]]s all year, supplemented by [[berry|berries]] in autumn and winter, particularly of [[Sorbus aucuparia|rowan]] ''Sorbus aucuparia'' and [[Crataegus monogyna|hawthorn]] ''Crataegus monogyna''.<ref name=bwpc/><ref name=hbw/><ref name=thrushes/>

===Natural threats===
A Russian study of blood parasites showed that many of the fieldfares, redwings and song thrushes sampled carried [[haematozoa]]ns, particularly ''[[Haemoproteus]]'' and ''[[Trypanosoma]]''.<ref name=Markovets >{{cite journal|last= Palinauskas |first= Vaidas |author2=Markovets, Mikhail Yu |author3=Kosarev, Vladislav V |author4=Efremov, Vladislav D |author5=Sokolov Leonid V |author6= Valkiûnas, Gediminas |year=2005 |title= Occurrence of avian haematozoa in Ekaterinburg and Irkutsk districts of Russia |journal= Ekologija |volume= 4|pages= 8–12}}</ref>