Description edit
Male red kites weigh 8001,200 g (2842 oz), while females weigh 1,0001,300 g (3546 oz). Red kites are 6070 cm (2428 in) long[14] and have a wingspan of 175179 cm (6970 in). [3] It is a graceful bird that soars on long, dihedral wings and a long, forked tail that twists as it changes course. The body, upper tail and wing coverts are rufous. The dark secondaries and black wing tips contrast with the white primary flight feathers. The sexes are similar except for the difference in weight; juveniles have a larger breast and belly. It makes a thin, piping sound when calling, not as mewling as a common buzzard. A rare white leucistic form makes up about 1% of the hatchlings in the Welsh population, but this variation puts the population at a disadvantage when it comes to survival. [15].
Ireland edit
The following numbers, the most of which are estimates, have been compiled from multiple sources. [3][60][62][63][64][65] They encompass the majority of the nations thought to be the breeding grounds for red kites.
Behaviour edit
Red kites typically begin reproducing at the age of two, though on rare occasions, they may do so as early as one year. [17][18] They are monogamous, and in resident populations, the pair-bond is likely preserved throughout the winter, especially if the pair stays in their breeding area. Because migrant populations are loyal to a specific nesting site, pair bonds are likely to be renewed during each breeding season. The nest is typically positioned between 12 and 15 meters (39 and 49 feet) above the ground in a fork of a large hardwood tree. A couple will occasionally use a nest from the previous year and may even take up residence in a common buzzard’s old nest. The nest is built by both sexes. Dead twigs measuring 3050 cm (1220 in) in length are brought by the male and placed by the female. The nest’s perimeter is covered in grass, occasionally with sheepswool. No greenery is added to the nest, in contrast to the black kite. Throughout the nest-building and nestling stages, both sexes keep adding materials. The size of nests varies a lot and can grow significantly if the same nest is used for multiple seasons.
The eggs are laid at three-day intervals. Typically, there are one to three eggs in the clutch, but records have occasionally shown as many as five eggs. The eggs have a white background with reddish-brown dots; they are not glossy. The average size is 57 mm × 45 mm (2. 2 in × 1. 8 in) with a calculated weight of 63 g (2. 2 oz). Laying starts in early March in the Mediterranean region, but it starts at the end of March in Britain and central Europe. The female is the one who incubates the eggs for the most part, but the male will occasionally step in while she feeds. The male will also bring food for the female. Incubation starts as soon as the first egg is laid. A clutch of three eggs requires 38 days to incubate because they hatch asynchronously; each egg hatches after 31 to 32 days. The chicks are cared for by both parents. For the first fourteen days, the male brings food to the nest, which the female gives to the chicks while she stays at home and tends to them. Later, to help the chicks feed themselves, both parents bring food items to the nest. After 45 days, the nestlings start to climb the branches surrounding their nest, but they rarely fledge before 4850 days and occasionally not until 6070 days. The young are fed by their parents for a further 1520 days while living close to the nest. Every year, only one brood is raised; however, in the event that the eggs are lost, the female will relay
In Germany, the oldest known age of a ringed bird is 25 years and 8 months. [21] A bird discovered dead in Buckinghamshire in 2018 also holds the BTO longevity record for Britain and Ireland at 25 years and 8 months. [22] In Oxfordshire in 2023, one of the first red kites to be reintroduced to the UK was discovered hurt. It eventually passed away at the age of 29. [23].
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