How to observe bird migration

Swallows follow the Tyrrhenian route and reach the countries of Africa. Finches from Central Europe move to the coasts of Spain and France. Storks cross the Bosphorus Strait. The robin heads for the Maghreb.

bird migrations

They seek food, temperatures more suitable to their characteristics, and they need to nest. These are the fundamental reasons why birds they give us the magic of migrazione, not to be wasted with our gaze. They usually travel at 600 meters high, but can reach up to 8 meters, crossing the airliners. The average speed is around 80 kilometers per hour and in one day migratory birds can even do 3 thousand kilometers of route.

La bird migration It is one of the most fascinating and exciting spectacles for true nature lovers. In theory, there are two seasons for this phenomenon: spring and autumn; in reality, the migratory movement of birds is perennial, lasting 365 days a year. The actual migration period depends on several factors, such as the species, the distance of migration, the speed of movement, the route involved, climate changes, and food availability.

bird migrations in Italy 1

When do they migrate?

Bird migration, as we've said, actually lasts year-round. It has no pauses. And it depends on a number of factors, ranging from the bird's speed to the route it takes, to climate change. However, the periods in which bird migration is most intense, frequent, and easy to observe are spring and autumn. Unfortunately, the greatest danger of this perennial migration remains the poachingEvery year, according to data provided by LIPU, 25 million birds are killed by poachers along the Mediterranean route.

How to follow bird migration

To follow the migration, and have the same emotions as the bird watcher, it is essential to know some things about migration. When it comes to moving, birds They've gained a lot of weight, and you might even have trouble recognizing them. The reason is obvious: nature provides them with a reserve, stored in their bodies, to withstand the strain of the long journey. Long, yes, but how long? It depends. It ranges from a week to much longer periods, even four months. And not all birds migrate at the same times, a diversity that makes the spectacle visible 24 hours a day. Hawks and swallows, for example, migrate during the day, while larks move at night.

bird migrations in Italy 2

What are migratory birds?

But where do the most important birds come from and where do they go? We have selected ten of them, and for each one we have identified the entire route, which you can follow with your binoculars.

  • Swallows

They are among the most widespread birds in Italy and can be seen almost everywhere. The migration route is the classic Tyrrhenian one, which runs from the northern regions through Tuscany, Lazio, and Campania. It then descends toward the southern nations, from Nigeria to the Central African Republic, all the way to the savannas of the Sahel. Here the swallows winter, then retrace their outward journey and return to our area in the spring.

  • Finches

Theirs is a coastal route. We also have many in Italy, but they are concentrated in central Europe. From here, in autunnoThey migrate to the warmer coasts of Spain and France, even crossing our Po Valley. They are sturdy and hardy birds, despite their small appearance, and therefore don't need to travel far to spend the winter.

  • Falchi

They are a protected and migratory species of birds of prey, present in Europe only in summer. Over the years, the most frequently observed species have been the Black Kite, the Marsh Harrier, and the Honey Buzzard, which, with over 200.000 individuals, is the most numerous species during the pre-nuptial migration along the islands of the Sicilian Channel.

  • Black Flycatchers

They are present in Italy as transient birds and occasionally nest in the northern regions. Their habitat consists of both broadleaf and coniferous forests with abundant undergrowth, as well as parks and gardensDuring migration they also frequent olive groves, poplar groves and tree-lined edges of wetlands.

  • Storks

In Europe, there are 220,000 pairs, while in Italy, where they returned to nest in the 1980s after a long absence, the species has now exceeded 200 pairs. The white stork spends the winter in tropical Africa, migrates in spring along the Bosphorus and Gibraltar Straits, and in smaller but still significant numbers along the Strait of Messina. It breeds in Europe, especially in eastern regions.

  • Robin

It belongs to a forest species that nests in our woods in Piedmont and in SardiniaWith the arrival of cold weather, the robin emerges from the dense forest, where it has raised its young, to venture into the countryside, into vegetable gardens, orchards, olive groves, and parks. During this time, it becomes visible and even more confident around humans, so much so that it approaches within a few meters of them, following them step by step as they prepare the soil and unearth worms and other insects that the robin is notoriously fond of.

  • House Martin

It belongs to the same family as the swallow, has black and white plumage, and is distinguished by its short tail. It breeds throughout Europe, much of Asia, and the Maghreb. These migratory birds remain in these regions from April to September. European house martins winter in Africa, Southeast Asia, and, to a small extent, on the Arabian Peninsula along the Red Sea.

  • Cormorant

It is a gregarious and "cosmopolitan" species that inhabits practically all continents (Europe, Asia, Africa, Oceania). Many individuals spend the winter in Italy and then migrate towards the southern hemisphere in spring and reproduce either towards the Scandinavian countries and central Europe. Other cormorants are sedentary and breed in favorable areas, such as the Po Delta and Sardinia. Finally, a significant group flies across the peninsula during the continental European migration, in March and October.

  • Duck

They arrive from the north in autumn and prepare to depart after wintering in the most welcoming and mild wetlands of our country, namely the quieter valleys of the Po Delta, but also in the ponds around Cagliari. In winter, large flocks of ducks can be seen: a small number remain in Italy to nest during the warmer months.

  • Heron

It is a partially sedentary and nesting species. In Italy, herons can be seen mainly in the north, along the rivers of the Po Valley, where many of its colonies are concentrated, but also among the rice fields of Piedmont and Lombardy. Many individuals can be spotted in Tuscany, along the banks of the Arno and Serchio rivers. They can also be observed in the upper Velino Valley and on the banks of the Tiber and its tributaries.

Bird Migration Calendar

In this page find the periods of migration, from August until late autumn, for each bird species. As for the timing, it all depends on the bird species. Swallows, hawks, and storks, for example, fly during the day and rest at night before continuing their journey the next day. Larks, on the other hand, are among the birds that prefer to travel exclusively at night, and they do so primarily to avoid predators always lurking along their route.

How birds orient themselves during migration

To orient themselves during migration, birds have three types of orientation. Magnetic, geographical, astronomicalIn the first case, they rely on chemical sensors that birds have on their bodies and beaks, which function as a natural GPS. Thanks to these sensors, birds never lose their way during their journey. Geographic orientation, on the other hand, is the result of habit. By constantly following the same route, migratory birds are able to proceed automatically, orienting themselves by looking at coasts, rivers, and mountains. As for astronomical orientation, in this case the compass is provided by the constellation of stars and position of the sunNot to be underestimated is the teaching of orientation that, in migratory birds, is passed down from generation to generation, while at the head of each flock there is always a group of birds considered more expert and better able to know the route and any potential dangers.

How long does the migration last?

The migration of the birds it is a mass and long-lasting phenomenon. If we start from the total number of species of birdsOf ten thousand, one in five undertakes regular seasonal migrations. Sometimes males and females travel together, while in other cases the flights are solitary. The energy expenditure for the journey is very high, and for this reason the accumulation of fat reserves begins well before departure. In the period preceding the journey, birds Migrants are very restless and sensitive: they know that every movement is a risk, and predators are always around the corner, especially when they have chosen the sites where they can best hide. The duration of the migration varies depending on the type of journey and whether it is done in stages or without stops. The longest non-stop flight is that of the bar-tailed godwit, of the woodcock family: from Alaska to New Zealand, for 11 thousand kilometers, all in one go and without ever stopping. The most significant energy saving for the birds, during migrations, occurs with the group flights. If the birds They fly in flocks, thanks to the synchronization of their wing beats, they benefit from an energy saving of 20 percent compared to a bird that flies alone. Thanks to a study by the University of Lund, in Sweden, it was discovered that the rock ptarmigan is thebird which has the best energy-saving capabilities. How does it do it? During the five months of the year when it is dark all day, it minimizes energy costs to maintain immunitary defense at the alert level.

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