Peregrine Falcon Diet and Size: Feeding Habits, Predators, and Measurements
The Peregrine Falcon, also called Falco peregrinus, is a magnificent bird of prey renowned for its incredible speed and hunting prowess. Found across the UK and around the world, these raptors have captured the imagination of bird enthusiasts and falconers alike.
In this article, we’ll have a closer look into the dietary habits, breeding patterns, size, and conservation status of the Peregrine Falcon, providing a comprehensive overview of this remarkable species!
Table of Contents
The Dietary Habits Of The Peregrine Falcon
Peregrine Falcons are skilled hunters with a diet primarily consisting of other birds.
What Does A Peregrine Falcon Eat?
Peregrine Falcons primarily feed on medium-sized birds, including pigeons, doves, waterfowl, and smaller songbirds. Their hunting technique involves high-speed dives, known as stoops, where they strike their prey in mid-air with a clenched foot, stunning or killing it instantly.
In urban environments, Peregrine Falcons often prey on feral pigeons, which are abundant in cities. They also hunt starlings, blackbirds, and other common urban birds. During migration periods, they may take advantage of the abundance of shorebirds and waterfowl.
While birds make up the majority of their diet, Peregrine Falcons are opportunistic hunters and will occasionally prey on small mammals, such as bats, and even insects when other food sources are scarce. This adaptability in their diet contributes to their success in various habitats.
What To Feed A Baby Peregrine Falcon?
Baby Peregrine Falcons, known as eyases, require a diet rich in protein for their rapid growth. In the wild, parent falcons feed their chicks small pieces of prey, typically birds, that they’ve caught and partially plucked.
If you encounter an orphaned or injured baby Peregrine Falcon, it’s important to contact a licensed wildlife rehabilitator immediately. These professionals have the expertise to provide the specialised care and diet these birds require.
Attempting to feed or care for a baby Peregrine Falcon without proper knowledge can be harmful to the bird’s health and development.
Breeding Habits Of Peregrine Falcons
Peregrine Falcons have interesting breeding behaviours that contribute to their successful reproduction.
Do Peregrine Falcons Mate For Life?
Peregrine Falcons often form long-term pair bonds, exhibiting a level of monogamy that can span multiple breeding seasons. However, these bonds are not necessarily for life, as partners may change if one falcon dies or if breeding attempts are unsuccessful.
During the breeding season, typically in early spring, males perform aerial displays to attract females, showcasing their agility and strength. Once paired, both parents collaborate in building a simple nest, usually a scrape on a cliff ledge or a suitable urban structure.
They usually lay a clutch of 3 to 4 eggs, which both parents take turns incubating. This cooperative approach extends to feeding the chicks, ensuring that the eyases receive ample nourishment to thrive. The ability to reuse successful nesting sites year after year demonstrates their adaptability and commitment to breeding success.
The Size & Weight Of Peregrine Falcons
The size and weight of Peregrine Falcons contribute to their aerodynamic efficiency and hunting capabilities.
How Much Does A Peregrine Falcon Weigh?
Adult Peregrine Falcons typically weigh between 600 to 1,300 grams. There is significant sexual dimorphism in this species, with females being notably larger than males.
Female Peregrine Falcons usually weigh between 910 to 1,500 grams, while males are smaller, weighing between 600 to 800 grams. This size difference is common among birds of prey and is thought to allow the pair to exploit a wider range of prey sizes.
The weight of Peregrine Falcons can vary throughout the year, with birds often being heavier before migration when they build up fat reserves for their long journeys.
How Big Is A Peregrine Falcon?
Peregrine Falcons measure between 39 to 50 centimetres (15 to 20 inches) in length, with a wingspan ranging from 95 to 115 centimetres (37 to 45 inches). As with their weight, females are typically larger than males in all measurements.
Their compact, streamlined body shape contributes to their incredible speed and agility in flight. Peregrine Falcons have pointed wings and a relatively short, broad tail, which allows for quick turns and high-speed dives during hunting.
Are Peregrine Falcons Under Threat?
Peregrine Falcons have faced significant challenges in the past but have shown remarkable recovery in recent years. In the UK, they are currently on the Green list of conservation concern, indicating that they are not considered at risk. Globally, they are classified as a species of Least Concern on the IUCN Red List of Threatened Species.
However, this wasn’t always the case. In the mid-20th century, Peregrine Falcon populations crashed due to the widespread use of organochlorine pesticides, particularly DDT. These chemicals accumulated in the food chain and caused eggshell thinning, leading to widespread breeding failures.
Following the ban of DDT and other harmful pesticides, along with extensive conservation efforts, Peregrine Falcon populations have made a significant comeback. In the UK, their numbers have increased and they have even expanded into urban areas, nesting on tall buildings and structures.
What Eats A Peregrine Falcon?
Adult Peregrine Falcons have few natural predators due to their speed, agility, and position near the top of the food chain. However, they are not entirely free from threats.
Great Horned Owls in North America and Eurasian Eagle-Owls in Europe are known to prey on Peregrine Falcons, especially at night when the falcons are less active. Other large birds of prey, such as Golden Eagles, may occasionally target Peregrine Falcons.
The eggs and chicks of Peregrine Falcons are more vulnerable to predation. Corvids like crows and ravens may raid nests for eggs or young chicks. In some areas, mammals such as rats or foxes might pose a threat to ground nests, although this is less common as Peregrines typically nest on high cliffs or buildings.
Human activities, while not predation in the traditional sense, can pose significant threats to Peregrine Falcons. This includes illegal hunting, disturbance of nesting sites, and collisions with vehicles or buildings.
Where Can I See Peregrine Falcons In The UK?
Peregrine Falcons are widely distributed across the UK and can be observed in both natural and urban settings. Coastal cliffs and rugged mountains serve as traditional nesting sites, offering ample hunting grounds for their avian prey.
In urban areas, they have adapted to nesting on tall buildings, bridges, and other high structures, where they exploit the abundance of city pigeons and other birds.
Popular locations for spotting Peregrine Falcons include the Scottish Highlands, the cliffs of Cornwall, and major cities like London and Manchester, where their nests are often perched atop skyscrapers and landmarks.
Birdwatchers can also visit nature reserves and coastal parks, where guided tours and observation points enhance the chances of witnessing these magnificent birds in action.
SEE ALSO: Peregrine Falcon Life Cycle: Nest Building To Fledging (and everything in between)
Frequently Asked Questions
In the wild, Peregrine Falcons typically live for 7 to 15 years, although some individuals have been known to live up to 20 years. In captivity, they can live even longer, with records of birds reaching 25 years of age.
Peregrine Falcons are not currently endangered. They are listed as a species of Least Concern on the IUCN Red List and are on the Green list of conservation concern in the UK. However, they were once critically endangered due to pesticide use in the mid-20th century.
Some Peregrine Falcon populations are migratory, while others are resident year-round. In the UK, many Peregrines are resident, but some individuals, particularly those from northern areas, may move south for the winter.
Peregrine Falcons typically lay 3-4 eggs per clutch. They usually have one brood per year, although they may lay a replacement clutch if the first is lost early in the season.
