November 15, 2017 – Grey Kestrel (Falco ardosiaceus)
These kestrels are found across parts of sub-Saharan Africa. Hunting from high perches, they eat a variety of vertebrate and invertebrate prey, including insects, reptiles, rodents, birds, bats, and earthworms. They are one of the few species of raptors that may also eat oil palm fruits. Pairs often take over the nests of Hamerkops, sometimes stealing them from the birds, or nest in tree cavities or old stick nests.
November 11, 2017 – Yellow-headed Caracara (Milvago chimachima)
These caracaras are found in open habitats from southern Central America to northern Argentina and Uruguay. They eat carrion, arthropods, amphibians, reptiles, other vertebrates, insects, and fruits, often foraging on the ground in small flocks or alone. They sometimes ride on the backs of capybaras or cattle, picking parasites from their fur or capturing prey disturbed by the large animals. Pairs build stick nests high in trees or on the ground if no trees are available.
September 25, 2017 – Northern Pygmy-Owl (Glaucidium gnoma)
These tiny owls are found in parts of western North America, through Mexico and into parts of northern Central America. Mostly hunting during the day, they eat small birds and mammals, along with some insects and reptiles. Despite their small size, they sometimes take prey much larger than themselves, like California Quails or Northern Flickers. Pairs nest in tree cavities, which they don’t excavate themselves, reusing those made by woodpeckers or rot, but occasionally adding feathers, moss, or other materials as lining. Females incubate the eggs, while males hunt, bringing food to their mates and chicks.
July 10, 2017 – Pied Harrier (Circus melanoleucos)
These harriers breed in Siberia, Mongolia, northeastern China, North Korea, and northern Myanmar, wintering in parts of South and Southeast Asia. Their diet is mainly small mammals such as voles, mice, and shrews, along with some small birds, frogs, lizards, and insects. They build their nests on the ground in grass or low shrubs from grasses, reeds, and weeds. Females do most of the incubation, which takes over a month. Both parents feed the chicks.
June 2, 2017 – Black Caracara (Daptrius ater)
These caracaras are found in northern central South America. Omnivores, they eat carrion, frogs, fish, birds, mammals, insects, and sometimes fruits. They also occasionally pick ticks from deer and tapirs. Spending much of their time alone, in pairs, or in small groups, they are often seen on exposed perches. They build their small nests from sticks in the crowns of trees. Their eggs hatch after about a month of incubation.
May 17, 2017 – Black-and-white Hawk-eagle (Spizaetus melanoleucus, formerly Spizastur melanoleucus)
These hawk-eagles are found in a variety of forested habitats in Mexico, Central America, and eastern and central South America. Their diet is made up of small mammals, reptiles, amphibians, and other birds, including toucans and falcons. Generally solitary, they fly near the forest canopy, dropping down onto their prey from above. Due to their low population density, individuals are uncommon in their large range and are threatened by habitat loss, though they are classified as a species of Least Concern by the IUCN. Little is known about their breeding habits, but a stick nest, placed high in a tree, has been observed.
April 25, 2017 – Galapagos Hawk (Buteo galapagoensis) Juvenile
Requested by: @marigoldfaucet
Found only on the Galapagos Islands of Ecuador, these hawks have become extinct on five islands. They prey on invertebrates, small lizards, snakes, and tortoise and sea turtle hatchlings, and also eat carrion and food scraps from humans. Nesting at any time of year, females form groups with several males, breeding with all of them and raising the chicks together in a system known as “cooperative polyandry.” They build nests in low branches or on the ground from grass, bark, leaves, and other materials, reusing them for several years. Classified as Vulnerable by the IUCN, they are at risk due to persecution from humans, competition for food with introduced predators, and their small range.