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Wood Warbler, Phylloscopus sibilatrix, Grönsångare

The wood warbler (Phylloscopus sibilatrix), called Grönsångare in Skåne, is a common and widespread leaf warbler which breeds throughout northern and temperate Europe, and just into the extreme west of Asia in the southern Ural Mountains.

The genus name Phylloscopus is from Ancient Greek phullon, "leaf", and skopos, "seeker" (from skopeo, "to watch"). The specific sibilatrix is Latin for "whistler".

This warbler is strongly migratory and the entire population winters in tropical Africa.

This is a bird of open but shady mature woodlands, such as beech and sessile oak, with some sparse ground cover for nesting. The dome-shaped nest is built near the ground in low shrub. 6 or 7 eggs are laid in May; there may be a second brood. Like most Old World warblers, this small passerine is insectivorous.

Wood Warbler, Phylloscopus sibilatrix, Grönsångare

Range map
Range map from - Ornithological Portal is one of those MUST visit pages if you're in to bird watching. You can find just about everything there

Wood Warbler, Phylloscopus sibilatrix, Grönsångare
Range map - Click HERE for full size map

By Keithwlarson - I created this map using ESRI ArcMap 10 with the digital range map provided on the "The Bird species distribution maps of the world, version 1.0" page from the BirdLife International website.
The BirdLife International terms of agreement for the use of the digital range maps can be found at:, CC BY-SA 3.0,

The wood warbler is 11–12.5 cm long, and a typical leaf warbler in appearance, green above and white below with a lemon-yellow breast. It can be distinguished from similar species, like the chiffchaff P. collybita and the willow warbler, P. trochilus by its yellow supercilium, throat and upper breast, pale tertial edges, longer primary projection, and by its shorter but broader tail.

Length: 11 - 12,5 cm
Wingspan: 19 - 24 cm
Weight: 7 - 12 g
Distinctive Feature
• Bright green upperparts, yellow throat and upper chest; white underparts.

• Wing and tail feathers very dark green with bright yellow-green fringes.

• Yellow supercilium. Juvenile similar to adult.
Similar Species
• Long wings, relatively short, broad tail, and strong chest give a distinctive 'front-heavy' shape compared to Willow Warbler and other Phylloscopus species. Brighter green above and more yellow throated than Western Bonelli's Warbler and Eastern Bonelli's Warbler. On the African wintering grounds, could be confused with Laura's Woodland Warbler, but that differs in having bright yellow, not white, under-tail coverts.

From opus at the forum for wild birds and birding.

It is a summer visitor to the United Kingdom, seen from April until August. It has declined there in recent years. It is rare in Ireland, where there is a very small but apparently stable breeding population in County Wicklow.

Various factors associated with forest structure, including slope, forest cover, proportion of broad-leaf forest, canopy height and forest edge length, all influenced the occupancy rates of this declining forest species. Conservation measures are therefore required that provide and maintain the wood warblers preferred forest structure.

Wood Warbler, Phylloscopus sibilatrix, Grönsångare
Eggs, Collection Museum Wiesbaden, Germany
By Klaus Rassinger und Gerhard Cammerer, Museum Wiesbaden - Own work,
CC BY-SA 3.0,

There is also a preference for forest in the non-breeding season, however this habitat is declining in wintering areas such as Ghana. Despite the decline in forest habitats, there has been no change in number of wood warblers as it appears that this species can use degraded habitats, such as well-wooded farms. However, further loss of trees will likely have a negative impact on this species in the future.

It has two song types, often (but not always) given alternately; a high-pitched fluid metallic trill of increasing tempo About this soundpit-pit-pitpitpitpt-t-t-ttt lasting 2–3 seconds, and a series of 3 to 5 descending piping notes of lower pitch piüü-piüü-piüü. The contact call is a soft piping note, similar to the second song type, but shorter and given singly, "piü".

Listen to the Wood Warbler / Grönsångare

Remarks from the Recordist

Recorded with my ZOOM H5 Handy Recorder. High Pass Filter applied with Audacity.

The bird was singing jumping around in the trees around me and it was very hard to take pictures. The same bird can also be heard in my Song Thrush recording I made from my video

Conservation status
Wood Warbler, Phylloscopus sibilatrix, Grönsångare
Least Concern (IUCN 3.1)
IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.

From Wikipedia, the free encyclopedia
From Wikipedia, the free encyclopedia

Sighted: (Date of first photo that I could use) 16 May 2019
Location: Beijershamn, Öland

Wood Warbler, Phylloscopus sibilatrix, Grönsångare
Wood Warbler / Grönsångare - Beijershamn, Öland - 16 May 2019

Wood Warbler, Phylloscopus sibilatrix, Grönsångare
Wood Warbler / Grönsångare - Beijershamn, Öland - 16 May 2019

Wood Warbler, Phylloscopus sibilatrix, Grönsångare
Wood Warbler / Grönsångare - Beijershamn, Öland - 16 May 2019

Thanks to Birdforum for all the help with the warblers from Öland

Forum thread HERE


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