Water-Crossing Behavior of Black Kites <i>(Milvus migrans)</i> During Migration

Agostini, Nicolantonio; Duchi, Antonino

doi:10.3727/015613894791748935

Cited by 16 publications

(13 citation statements)

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“…In addition, the higher percentage of Black Kites migrating in flocks at the island of Ustica than at the Strait of Messina confirms that these raptors tend to undertake long sea crossing mostly in flocks as previously reported at the Cap Bon Promontory (Tunisia; Agostini and Duchi 1994). Such as those observed over Ustica, at the Cap Bon Promontory Black Kites often stop migration facing the water barrier and fly back inland (Agostini 2002).…”

Section: Discussionsupporting

confidence: 71%

“…Such as those observed over Ustica, at the Cap Bon Promontory Black Kites often stop migration facing the water barrier and fly back inland (Agostini 2002). In particular, at that site, Agostini and Duchi (1994) recorded a flock of 60 individuals (30 adults and 30 immatures) during the first half of May, which once reached the coastline split up -with adults crossing the sea and immatures flying back inland. Also in other species of raptors, e.g.…”

Section: Discussionmentioning

confidence: 99%

“…Broad-winged raptors, like eagles and buzzards, concentrate in places where the distance between Africa and Europe is narrower (the Strait of Gibraltar and Bosporus), while other species with relatively long wings, like Circus spp., cross the Mediterranean on a wide front being more likely than broad-winged raptors to use powered flight over sea (Zalles and Bildstein 2000, Agostini 2005, Agostini and Panuccio 2010. Black Kites show intermediate behaviour between eagles and harriers: in fact, although concentrations of individuals are observed every spring at the Strait of Gibraltar, hundreds of Black Kites undertake long sea crossings in the Central Mediterranean region through the Channel of Sicily and the Tyrrhenian Sea (Agostini and Duchi 1994, Agostini and Logozzo 1998. At the Strait of Gibraltar Black Kites migrate mostly in early spring peaking during the first half of March (Finlayson 1992).…”

Section: Introductionmentioning

confidence: 99%

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Timing, age classes and water-crossing behaviour of Black Kites (Milvus migrans) during spring migration across the Central Mediterranean

Panuccio

Agostini²

2010

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The main migratory passage of Black Kites across the Mediterranean Sea occurs at the Strait of Gibraltar, where the migration peak is observed in early March. Conversely, in the Central Mediterranean the migration of this species is scarce during the supposed peak period, while hundreds of individuals are observed migrating later in the season, mostly in April and May. In the present study we investigate the spring migration of Black Kites at two sites of the Central Mediterranean, the island of Ustica and the Strait of Messina. Timing, age classes and water-crossing behaviour of this species suggest that large numbers of non-breeders use this route during spring. However, a peculiar migration timing of breeding pairs belonging to the Italian population cannot be excluded.

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Section: Discussionsupporting

confidence: 71%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Timing, age classes and water-crossing behaviour of Black Kites (Milvus migrans) during spring migration across the Central Mediterranean

Panuccio

Agostini²

2010

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“…Previous studies made at the Cap Bon promontory and over the islands of Marettimo and Ustica, showed that Honey Buzzards of the same flock, such as Black Kites Milvus migrans (Agostini & Duchi 1994), tend to remain together in front of the water barrier because the first individuals making a decision (crossing or not) are followed by the others (Agostini et al 1994a(Agostini et al , 1994b(Agostini et al , 2005, N. Agostini and M. Panuccio pers. obs.).…”

Section: Influence Of Wind and Geography On Orientation Behavior Of Amentioning

confidence: 99%

Influence of Wind and Geography on Orientation Behavior of Adult Honey BuzzardsPernis apivorusDuring Migration Over Water

Agostini¹,

Premuda²,

Mellone³

et al. 2005

Acta Ornithologica

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“…), the physiological state of the bird (Meyer et al . ), flock size (Agostini & Duchi ), time of day (Agostini et al . ), experience (Meyer et al .…”

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Wind conditions facilitate the seasonal water‐crossing behaviour of Oriental Honey‐buzzards Pernis ptilorhynchus over the East China Sea

Nourani

Yamaguchi

Manda

et al. 2016

Ibis

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Migratory raptors rarely fly over stretches of water larger than 25 km, although different species undertake water crossings of varying lengths, depending mainly on their wing morphology. Oriental Honey‐buzzards fly c. 680 km over the East China Sea in autumn from breeding areas in Japan to wintering areas in Southeast Asia, but avoid this long water crossing in spring. We investigated the effects of weather on this exceptional migratory behaviour and its seasonality through a maximum entropy niche modelling approach. We used data collected through satellite tracking of 31 adult birds as presence points and a set of variables related to wind, precipitation and convective condition as environmental predictors. Results of modelling showed very different, almost non‐overlapping, areas suitable for migration over the East China Sea region in autumn and spring. Suitable migration routes in autumn mostly occurred over the sea, whereas suitable areas for spring migration mostly occurred over land, suggesting that circumnavigating the East China Sea is preferable in spring. At the regional scale, wind conditions facilitate water‐crossing behaviour of Oriental Honey‐buzzards in autumn, but not in spring. Specifically, suitable tailwinds over the sea enable water‐crossing in autumn, whereas in spring, wind support and convective conditions are best over land. Our modelling did not suggest any importance of convective conditions for autumn migration. However, we expect that at smaller temporal scales, convective conditions would be a considerable facilitator of the water‐crossing behaviour in this species.

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Water-Crossing Behavior of Black Kites (Milvus migrans) During Migration

Cited by 16 publications

References 0 publications

Timing, age classes and water-crossing behaviour of Black Kites (Milvus migrans) during spring migration across the Central Mediterranean

Timing, age classes and water-crossing behaviour of Black Kites (Milvus migrans) during spring migration across the Central Mediterranean

Influence of Wind and Geography on Orientation Behavior of Adult Honey BuzzardsPernis apivorusDuring Migration Over Water

Wind conditions facilitate the seasonal water‐crossing behaviour of Oriental Honey‐buzzards Pernis ptilorhynchus over the East China Sea

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