Twenty One Fascinating Secrets You Should Know About Wild Swallows

These graceful airborne birds belong to a specific avian family named Hirundininae. This biological group also includes all species of martins. There are eighty four recognized species thriving across the globe today. These aerial creatures are completely separate from swifts and do not share any close genetic relationship with them.

Global Breeding Terrains and Far Reaching Winter Migrations

Our most familiar bird is known scientifically as Hirundo rustica. Most people refer to this widespread species as the barn swallow. They breed extensively throughout the entire Northern Hemisphere. This territory includes every single European nation except for Iceland. This variety ranks as the most widespread member of the family on Earth. However several remarkably similar species choose to breed across Africa. The welcome swallow found in Australia is also a very close relative.

These resilient creatures can even nest well north of the Arctic Circle in Norway and Finland. The European populations mostly pass the cold winter months in Africa south of the Sahara desert. Curiously the groups from the British Isles and northern Europe travel much farther south than those from central and southern Europe. They fly all the way to Botswana and South Africa for the winter. Meanwhile a few small groups regularly choose to spend their winter resting in southern Spain.

Industrial Nesting Choices and Complex Construction Journeys

These birds strongly prefer to build their homes inside open fronted structures. They regularly occupy old barns, horse stables, and large cowsheds. It takes a dedicated breeding pair up to one thousand two hundred individual flights to construct a single mud nest. The male helps with the heavy lifting but only the female lines the interior with soft materials.

They like to nest in close proximity to large domestic livestock like cattle or horses. The steady decline of dairy farming in the United Kingdom has hurt the species. The resulting shift toward arable crop farming does not suit their nesting habits. Most British pairs try to rear two separate broods every summer. Some successful couples even manage to raise three generations in a single season.

Shifting Geographic Distributions and Ancient Historical Roots

The total European population is estimated to reach around fifteen million individuals. The largest populations thrive within Poland and Bulgaria. The United Kingdom hosts about one million birds which places the nation in eleventh place globally. Red rumped varieties are steadily spreading northward from the Mediterranean region. Small numbers of these over shooting birds appear along northern shores every single spring.

These creatures were likely much rarer before humans started practicing widespread agriculture and animal husbandry. Modern farms provided them with a massive increase in nesting sites and feeding grounds. While Mediterranean populations often fledge their very first broods as early as April, the birds breeding in northern Scandinavia rarely arrive before the third week of May.

Courtship Rituals and Equal Physical Appearances

The male always arrives back first from his long seasonal migration. He immediately starts singing loudly over his chosen territory to attract a suitable mate. The females generally appear a week to a fortnight later. The males and females look virtually identical in their outward appearance.

They are highly adaptable and will readily adopt artificial nests hung by humans. These manufactured shelters must closely resemble their own natural mud built constructions. A massive amount of ancient folklore surrounds these beautiful creatures. Spotting the very first arrival of the year is widely regarded as a wonderful omen. People in Russia historically wrote beautiful songs to celebrate their return after the long cold winter.

Before the modern mysteries of avian migration were fully understood by science, people held strange beliefs about these birds. Many communities thought that they spent the cold winter buried deep inside the mud of frozen ponds and lakes. Finally these creatures always consume fresh water while remaining fully airborne. They fly exceptionally low over the surface to sip the liquid without ever stopping their flight.