Exhibits
Lorikeet Forest
Transport Yourself to the Coastal Lowlands of Australia
Imagine… walking down a winding path lined with a waterfall and trees. Overhead, you hear some chirping. It grows louder and louder until you spot them! Brilliantly colored lorikeets fill the air looking for a resting place. At last they find the perfect spot...your arm or even your head!
Transport yourself to the coastal lowlands of Australia when you enter Lorikeet Forest, a 3,200 sq. ft. outdoor aviary. More than 100 enthusiastic lorikeets fill the trees. Purchase a small cup of nectar, the lorikeets’ favorite food, to feed the birds as you walk through the exhibit. You will find them sitting on your hand, arm, shoulder or even your head to get a sip of sweet nectar!
Measuring approximately 10 inches in length, lorikeets exhibit a dazzling color combination, ranging from brilliant blues and greens to exquisite reds, yellows, and deep purples. When seen in full sunlight, these beautifully colored birds almost radiate an iridescent glow—a bright contrast to the thick, dark trees of their natural habitat.
The Aquarium’s Lorikeet Forest features five sub-species of Rainbow Lorikeets. Lorikeet Forest also features two close relatives of Rainbow Lorikeets and the Violet-necked Lory. Unlike lorikeets that have long tapered tails, lories have short blunt tails.
Lorikeets spend approximately 70% of their time feeding. They can feed on 30 to 40 eucalyptus flowers per minute! While searching for food, the birds can travel more than 30 miles daily, stopping in 10-second intervals to scan the area in search of food.
The Lorikeet Diet
The lorikeet's diet is comprised of nectar, pollen flowers, fruits, berries, and unripe grain. Their diet is limited to soft food because these birds have weak gizzards, which break up harder foods like seeds. Thus, they have a specialized tongue that allows them to easily consume their soft food and liquid diet. Tiny hair-like appendages called "papillae" form a "U" shape on the end of their tongue. When the tongue is extended, these papillae become erect, like bristles on a brush, expanding the tongue’s surface area and allowing the birds to easily soak up nectar and collect pollen from the blossoms. Unique to lorikeets, these papillae have earned them the name "brush-tongued parrots."
Another characteristic unique to lorikeets is their beak structure. Designed to easily extract hard to reach seeds from cones, the birds’ upper mandible has a pointed tip and is much narrower than that of their parrot relatives. For harder fruits found in rainforest trees, the birds easily adapt by scraping the fruit on the inside of their open bill and then removing the sweet juice with their specialized tongue. top
Home Base and Taking Wing
The lorikeets' roost is a centralized location where, it is thought, the birds congregate to share information. Spreading the word about discovered food resources, finding potential mates, and teaching feeding techniques to inexperienced fledglings are possible “topics of conversation.” Roost sizes vary seasonally, some having as many as 50,000 birds!
In the misty morning hours the flock leaves the roost to begin its journey to the feeding grounds, which are generally found within a 20-mile radius. The birds seem to find the way from their roost to their various feeding sites by using paths that tend to follow geographic features like hills, valleys, or rivers. Traveling flocks generally consist of 16 members, while feeding flocks may include up to 20 birds. At times, when several traveling flocks land in the same location, you may see up to 1,000 lorikeets all at once!
Living in the treetops and searching for food requires long hours of flying over great distances. With rapid wing beats, the lorikeets have an advantage for high speeds and long-range flights at high altitudes. For shorter distances, the birds can also easily maneuver between the thick trees. Just before sunset, the lorikeets return to their roosts to settle in for the night before making their long journey again in the morning. top
Hatching A Plan
For lorikeets, mating and nesting require just as much planning as their feeding routine. Lorikeets will travel long distances in an effort to locate a suitable nesting site. They typically build their nests in tree cavities, often as high as 80 feet (25 m) above ground. Numerous tree hollows are investigated before one is chosen. To prepare the nest, they add a layer of wood dust at the bottom of the tree cavity.
The male will display courtship by arching his neck and bobbing his head, all the while emitting a low whistle. The female's interest in mating will depend on how close she is to nesting. Once mating has occurred, the female lays a clutch, or group, of two or three white, oval-shaped eggs in the nest. The eggs are incubated by both parents for approximately 25 days before they hatch. Thought to mate for life, a pair of mating lorikeets can produce up to three clutches a season.
Both the male and female will feed the new hatchlings until they move into the communal roost. The young will leave the nest for the first time after seven to eight weeks, but may remain with their parents over the summer. Although lorikeets reach sexual maturity around nine months of age, most birds do not breed until they are two or three years old. In the wild, lorikeets have a life span of 15 to 30 years. top
A Species In Danger
There are 53 species of lorikeets and about 32 sub-species of the Rainbow Lorikeet. At least 13 lorikeet species are considered endangered or vulnerable to extinction. The destruction of lorikeet habitats for logging and agriculture as well as the introduction of rats and snakes to South Pacific islands are a major contributor to their decline.
Unfortunately, because the lorikeets' diet consists of apples, pears, and corn, they are responsible for a significant amount of crop damage and are considered pests by many. In Darwin, Australia, as much as 80 to 90% of tropical fruit crops have been lost to the Rainbow Lorikeets. In New Zealand, the capture of Rainbow Lorikeets is encouraged by the Department of Conservation. They pose a threat to other bird species that are indigenous to the area, so they have been declared an “Unwanted Organism” by the Biosecurity Act 1993. Pet owners are encouraged to keep their lorikeets in secure caging, otherwise strict penalties are enforced for anyone found releasing a lorikeet into the wild. Joining only a small number of species, Rainbow Lorikeets have been added to the Fifth Schedule of the Wildlife Act, meaning they are no longer protected.
Through educational efforts and by instilling a sense of respect for the beautiful lorikeets, we hope we are able to see their dazzling colors shine through the misty treetops for years to come. top
