Woodlark
Introduction
Very much a bird of wooded heath, the lilting song of the Woodlark can be heard on sunny days throughout the year.
Woodlarks are patchily distributed in the UK, from the heaths of East Yorkshire to East Anglia, the New Forest and Dartmoor. It is not found in on the island of Ireland. During the winter months Woodlarks gather in small flocks, often close to their breeding areas. Sometimes as many as 50-60 birds can be seen feeding together, seeking out seeds and invertebrates.
The Woodlark is one of the few birds in the UK with a supercilium, the stripe above the eye, that meets on the back of the head. It also has a distinctly short tail.
- Our Trends Explorer gives you the latest insight into how this species' population is changing.
Key Stats
Identification
ID Videos
This section features BTO training videos headlining this species, or featuring it as a potential confusion species.
Skylark & Woodlark
Songs and Calls
Song:
Call:
Status and Trends
Conservation Status
Population Change
This species is too rare and restricted in range for population changes to be monitored annually by BTO volunteer surveys. A 62% reduction occurred in the number of 10-km squares occupied between 1968-72 and 1988-91; the species had ceased to breed in Wales and in several southern English counties over this period (Gibbons et al. 1993). Sitters et al. (1996) report that the UK population increased from c.250 pairs in 1986 to c.600 pairs in 1993. A repeat national survey in 1997 showed that the population had increased further, accompanied by expansion of the range into new areas (Wotton & Gillings 2000). A further repeat in 2006 recorded just over 3,000 pairs: an increase since 1997 of 88% accompanied by major range expansion, with a pair breeding in Wales for the first time since 1981 (Conway et al. 2009). However, numbers dropped following the severe winters in 2008/09 and 2009/10 (Holling & RBBP 2012; APEP4). As a result of these population changes, Woodlark was dropped as an RBBP species in 2012 but reinstated in 2016.
Atlas data for 2008-11 indicate losses of range since 1968-72 in southwestern and southern England, and in Wales, offset by expansion in central southern England and northwards in eastern England (Balmer et al. 2013). The species' partial recovery in numbers and range resulted in a move from the red to the amber list at the 2009 review (Eaton et al. 2009) and on to the UK green list in 2015 (Eaton et al. 2015).
There has been an increase across Europe since 1980, although this trend should be treated with caution as the data from early years are based on limited geographical coverage (PECBMS: PECBMS 2020a>).
Distribution
The core part of the Woodlark's breeding range is Devon, the New Forest, and the heaths of the Thames Basin and East Anglia. Additionally there are new populations in the West Midlands, northern England and South Wales. In the 1980s Woodlarks usually departed their East Anglian breeding areas in winter, but now many remain year round. With these and others wintering near central and northern England breeding areas, the winter range is four times larger than it was in the 1980s.
Occupied 10-km squares in UK
or view it on Bird Atlas Mapstore.
or view it on Bird Atlas Mapstore.
European Distribution Map
Distribution Change
Woodlark distribution has changed considerably since the 1970s. Between 1968–72 and 1988–91 the range contracted by 63%, largely through losses on farmland in Wales and southwest England. Subsequently, a 107% range expansion took place up to 2008–11
Change in occupied 10-km squares in the UK
or view it on Bird Atlas Mapstore.
or view it on Bird Atlas Mapstore.
Seasonality
Some Woodlarks are present throughout the year but arrivals and song activity means most likely recorded from late winter onwards; a noticeable peak in late autumn of passage birds, most detected in flight.
Weekly pattern of occurrence
The graph shows when the species is present in the UK, with taller bars indicating a higher likelihood of encountering the species in appropriate regions and habitats.
Movement
Britain & Ireland movement
Foreign locations of birds ringed or recovered in Britain & Ireland
Dots show the foreign destinations of birds ringed in Britain & Ireland, and the origins of birds ringed overseas that were subsequently recaptured, resighted or found dead in Britain & Ireland. Dot colours indicate the time of year that the species was present at the location.
- Winter (Nov-Feb)
- Spring (Mar-Apr)
- Summer (May-Jul)
- Autumn (Aug-Oct)
European movements
EuroBirdPortal uses birdwatcher's records, such as those logged in BirdTrack to map the flows of birds as they arrive and depart Europe. See maps for this species here.
The Eurasian-African Migration Atlas shows movements of individual birds ringed or recovered in Europe. See maps for this species here.
Biology
Productivity and Nesting
Nesting timing
Egg measurements
Clutch Size
Incubation
Fledging
Survival and Longevity
Survival is shown as the proportion of birds surviving from one year to the next and is derived from bird ringing data. It can also be used to estimate how long birds typically live.
View number ringed each year in the Online Ringing Report.
lifespan
Survival of adults
Survival of juveniles
Biometrics
Wing length and body weights are from live birds (source).
Ring Size
Classification, names and codes
Classification and Codes
- Order: Passeriformes
- Family: Alaudidae
- Scientific name: Lullula arborea
- Authority: Linnaeus, 1758
- BTO 2-letter code: WL
- BTO 5-letter code: WOODL
- Euring code number: 9740
Alternate species names
- Catalan: cotoliu
- Czech: skrivan lesní
- Danish: Hedelærke
- Dutch: Boomleeuwerik
- Estonian: nõmmelõoke
- Finnish: kangaskiuru
- French: Alouette lulu
- Gaelic: Uiseag-choille
- German: Heidelerche
- Hungarian: erdei pacsirta
- Icelandic: Trjálævirki
- Irish: Fuiseog Choille
- Italian: Tottavilla
- Latvian: sila cirulis, vilinš
- Lithuanian: lygute
- Norwegian: Trelerke
- Polish: lerka
- Portuguese: cotovia-dos-bosques
- Slovak: škovránik stromový
- Slovenian: hribski škrjanec
- Spanish: Alondra totovía
- Swedish: trädlärka
- Welsh: Ehedydd Coed
Research
Causes of Change and Solutions
Causes of change
The causes of change are uncertain, but increased habitat available and climate change may both have benefited Woodlark.
Further information on causes of change
The increase from c.250 pairs in 1986 to c.600 pairs in 1993 was probably helped by mild winters and increased habitat availability due to storm damage in plantations, forest restocking, and heathland management ((Sitters et al. 1996)).
Farmland setaside, especially close to forest, was valuable additional habitat for the expanding population, although clutch sizes may be lower there than in more traditional habitats (Wright et al. 2007). Climate change may benefit Woodlark, because it is able to make more nesting attempts in warmer years (Wright et al. 2009). The cold 2008/09 and 2009/10 winters may, however, have brought about the reduction in numbers reported to RBBP for 2010 (Holling & RBBP 2012; Woodward at al. 2020: APEP4). The small NRS sample suggests that nest failure rates have become less frequent at the egg stage. There has been no trend, however, in the number of fledglings per breeding attempt. Human disturbance at heathland sites apparently reduces population density, but the effects are partly offset by higher breeding productivity at lower densities (Mallord et al. 2007).
Information about conservation actions
The Woodlark has increased in numbers since the 1980s, although it is restricted by its habitat requirements and so remains vulnerable, and is an RBBP species.
Disturbance caused by human recreational activity at heathland sites may reduce population density. In one study, the probability of suitable habitat patches being occupied was reduced to below 50% at around eight disturbance events per hour (Mallord et al. 2007). Modelling carried out as part of this study suggested that, where possible, increased visitor numbers should be concentrated on sites which are already disturbed as this would have much less effect on the woodlark population than increased visitor numbers across all sites.
Provision of suitable heathland and woodland habitat could also benefit the Woodlark. The species requires patches with substantial proportions of bare ground and short vegetation (Mallord et al. 2007). Annual ground disturbance within c.45 m of woodland successfully increased Woodlark numbers on a lowland grass-heath with closed swards (Hawkes et al. 2019). Woodlarks in Polish commercial forests prefer areas with new regrowth (less than five years old) but with some mature trees retained and with a higher proportion of forest edge habitats (Mallord et al. 2007). In the Mediterranean, the population has increased following land abandonment which has created a heterogeneous landscape of farmland and shrubland (Sirami et al. 2010), given the differing climates it is unclear whether creating set-aside in the UK close to existing populations might have a similar effect; farmland set-aside fields are used in Breckland, but may be sub-optimal to other breeding habitats (Wright 2006).
