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Habitat use and population dynamics of the Azure-Winged Magpie ...

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The IUCN lists Cyanopica cyanus as ‘least concern’ (BirdLife International, 2009). They<br />

estimate about 260,000-460,000 breeding pairs present in Europe (Iberian Peninsula) <strong>and</strong><br />

3,250,000-27,600,000 individuals globally.<br />

2.1.3 Climate <strong>and</strong> <strong>Habitat</strong><br />

The climate in Iberia is typically Mediterranean, with dry-hot summers <strong>and</strong> mild-wet winters<br />

(Valencia et al., 2003; Canário et al., 2004). Precipitation is extremely variable year to year<br />

(Valencia et al., 2002; Canário et al., 2004).<br />

The Japanese <strong>population</strong> occurs in colder climates, with snow covering <strong>the</strong> ground from<br />

December to early April. Temperatures in winter can reach -8°C (Komeda et al., 1987). In<br />

Nor<strong>the</strong>rn Mongolia, winter conditions can be more severe, with temperatures reaching -30°C in<br />

January <strong>and</strong> snow covering <strong>the</strong> ground from early October to mid-April (Dulamsuren et al.,<br />

2005). However, conditions are relatively stable within seasons compared to climate in <strong>the</strong><br />

Iberian Peninsula.<br />

This species <strong>use</strong>s a wide range <strong>of</strong> habitats—from woodl<strong>and</strong>s <strong>and</strong> forest edges to open cultivated<br />

fields <strong>and</strong> orchards; <strong>the</strong>y may even be found in city parks <strong>and</strong> gardens (e.g. Beijing Heavenly<br />

Temple, China, pers. obs.). They are mainly found in lowl<strong>and</strong>s <strong>and</strong> valleys, but can ascend to<br />

1600 m in Japan (Madge & Burn, 1994; Snow et al., 1998). The Iberian <strong>population</strong>, in contrast to<br />

those in Asia, shows no marked preference for broad-leaved trees, or for river banks <strong>and</strong> isl<strong>and</strong>s<br />

(Snow et al., 1998).<br />

2.1.4 Diet<br />

C. cyanus feed on invertebrates especially beetles, seeds, fruits, <strong>and</strong>, more rarely, small<br />

vertebrates, carrion, scraps <strong>and</strong> ref<strong>use</strong> (Madge & Burn, 1994; Snow et al., 1998). Hosono (1966)<br />

reported bird nestlings in <strong>the</strong> diet (

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