Magpie

Magpie

Pica pica
Magpie, Gary Haigh

Introduction

With their iridescent black and white plumage, long tail and endless curiosity, Magpies are among our most distinctive birds. They feature prominently in folklore and superstition throughout Europe.

At least a third of the Magpie's 45 cm length is the long, stiff tail. In drab light, they are largely black, with white flanks, belly and wing patches. Their most distinctive call is a repetitive chac-chac-chac-chac', often made when birds are agitated. Captive birds have been shown to be capable mimics.

Magpies are common and widespread in most of Britain & Ireland apart from north and north-west of Scotland. They are scarce vagrants on a number of Scottish islands. They were formerly heavily persecuted throughout Britain, but their numbers grew through the late 20th century as this lessened. They are still controlled in many areas.

  • Our Trends Explorer gives you the latest insight into how this species' population is changing.
Magpie, Gary Haigh

Key Stats

Status
Common
Common
Weight
Weight
212.9g
Eggs
Eggs
5-6
BTO Records
BTO Records
7.4m records
Population and distribution stats for:
Population Change
Population Change
102% increase 1967–2022
Population Size
Population Size
610k Territories
Distribution Change
Distribution_change
6.4% expansion

Identification

Curated resources to aid in the identification of Magpie

Songs and Calls

Listen to example recordings of the main vocalisations of Magpie, provided by xeno-canto contributors.

Call:

Alarm call:

Movement

Information about Magpie movements and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.

Britain & Ireland movement

View a summary of recoveries in the Online Ringing Report

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)
Foreign locations of birds ringed or recovered in Britain & Ireland

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.

Biology

Lifecycle and body size information for Magpie, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.

Productivity and Nesting

Nesting timing

Average (range) fo first clutch laying dates
22 Apr (8 Apr-4 May)
Typical (exceptional) number of broods
1

Egg measurements

Typical length x width
34x24 mm
Mass (% shell)
9.9g (6%)

Clutch Size

Typical number
6-5 eggs
Average ±1 standard deviation
5.37±1.27 eggs
Observed minimum and maximum
2-9 eggs

Incubation

Incubation by
Female
Typical duration
20-20 days
Observed average ±1 standard deviation
20.05±1.79 days
Observed minimum and maximum
17-23.5 days

Fledging

Type of chick
Altricial, naked
Typical duration
31-26 days
Observed average ±1 standard deviation
28.03±3.7 days
Minimum and maximum
21-34 days
N=2789, Source
Visit our Trends Explorer for trend graphs and country statistics.

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

Typical life expectancy of bird reaching breeding age
5 years with breeding typically at 2 years
Maximum age from a ringed bird
21 years, 8 months, 23 days (set in 1947)

Survival of adults

All adults
0.69
Females
0.6
Males
0.75

Survival of juveniles

All juveniles
0.4 (in first year)
Visit our Trends Explorer for trend graphs and country statistics.

Biometrics

Wing length and body weights are from live birds (source).

Wing length

Average ±1 std deviation; range and sample size in brackets.
Juvenile
183.6±8.1 mm
(170-197 mm, N=615)
All adults
186.2±8 mm
(173-198 mm, N=503)
Female
183.5±7.5 mm
(172-196 mm, N=158)
Male
193.1±5.1 mm
(186-200 mm, N=42)

Body weight

Average ±1 std deviation; range and sample size in brackets.
Juvenile
183.6±8.1 mm
(170-197 mm, N=615)
All adults
186.2±8 mm
(173-198 mm, N=503)
Female
183.5±7.5 mm
(172-196 mm, N=158)
Male
193.1±5.1 mm
(186-200 mm, N=42)
Visit our Trends Explorer for trend graphs and country statistics.

Ring Size

E

Classification, names and codes

Taxonomy, names and species codes for Magpie

Classification and Codes

  • Order: Passeriformes
  • Family: Corvidae
  • Scientific name: Pica pica
  • Authority: Linnaeus, 1758
  • BTO 2-letter code: MG
  • BTO 5-letter code: MAGPI
  • Euring code number: 15490

Alternate species names

  • Catalan: garsa
  • Czech: straka obecná
  • Danish: Husskade
  • Dutch: Ekster
  • Estonian: harakas
  • Finnish: harakka
  • French: Pie bavarde
  • Gaelic: Pioghaid
  • German: Elster
  • Hungarian: szarka
  • Icelandic: Skjór
  • Irish: Snag Breac
  • Italian: Gazza
  • Latvian: žagata
  • Lithuanian: paprastoji šarka
  • Norwegian: Skjære
  • Polish: sroka (zwyczajna)
  • Portuguese: pega
  • Slovak: straka obycajná
  • Slovenian: sraka
  • Spanish: Urraca común
  • Swedish: skata
  • Welsh: Pioden
  • English folkname(s): Chatterpie, Meg, Pianet

Research

Interpretation and scientific publications about Magpie from BTO scientists.

Causes of Change and Solutions

Causes of change

The number of fledglings per breeding attempt increased strongly until the 1990s but then stabilised, a pattern mirroring the population index, which suggests that changing breeding success has been an important driver of population change. There is little published evidence about the ecological drivers of change. Changes in control of Magpies could have played a role, but their generalist ecology means that they are able to prosper in suburban and intensively farmed landscapes, which is likely to have allowed populations to reach a historically high equilibrium level.

Further information on causes of change

Although there is little evidence directly supporting this, it is likely that the stabilisation in Magpie numbers reflects the population reaching carrying capacity in the intensively farmed and modern suburban landscapes. The fact that recent stability or decline is associated with parallel trends in fledglings per breeding attempt supports this. Demographic data presented here show that the number of fledglings per breeding attempt increased dramatically up until the 1990s but then stabilised (see above). Although clutch and brood sizes have declined over the whole time series, there have also been decreases in the failure of nests at the egg and chick stages. A strong trend towards earlier laying has also been identified and may be partly explained by recent climate change (Crick & Sparks 1999).

The historical increases in Magpies have occurred at the same time as falling levels of control by gamekeepers from the time of the First World War (Tapper 1992), but there is no direct evidence for a causal link. Since 1990, the widespread adoption of the Larsen trap for predator control has been responsible for a large increase in Magpie numbers killed on shooting estates (GWCT data), and this could have played a role in stabilising population growth in some areas, but is unlikely to explain population change in towns and cities.

Magpies have increased in farmland and woodland habitats, with the largest population growth on mixed and pastoral farms, and the smallest on arable land (Gregory & Marchant 1996). The remarkable adaptability of Magpies has enabled them to colonise many new urban and suburban localities since the 1960s.

Information about conservation actions

Numbers are currently stable following increases during the 1970s and 1980s, hence the Magpie is not a species of concern and no conservation actions are currently required.

On the contrary, legal control of magpies occurs on many shooting estates, and Magpies (along with Crows) have been suggested as possible drivers in the declines of other species. In the case of songbirds, there is evidence that predation of eggs and young does not have population level effects on songbirds and therefore wider control measures would not be appropriate for this purpose (Gooch et al. 1991; Newson et al. 2010b).

More Evidence

More evidence from Conservation Evidence.com

Partners

Birdfacts is based on data collected by volunteers participating in surveys that are organised and funded by BTO, RSPB, Esmée Fairbairn Foundation, JNCC and other partners.
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