Birds. of a feather flock together. Haliaeetus leucocephalus (Bald eagle). Introduction of birds with some important features. Common symptoms between eagle and falcon. General bird themes. Birds of prey.
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of a feather flock together
Birds are vertebrates with feathers.
They resemble other vertebrates (mammal, reptiles, amphibians and fish) in most major aspects of architecture, bodily, organization, and function. In birds, however, the tail is reduced to a single bony stub, called the pygostyle.
Most distinctive of all, birds forelimbs have been strongly modified to form wings.
Other vertebrate groups have some members that can fly, but only among birds is flight common to virtually all. In their general anatomy, birds most nearly resemble reptiles, but like mammals, they are warm-blooded. Birds have extraordinarily acute eyesight and exceptional hearing, but their olfactory sense is much less acute than most mammals. Their primary identifying (and diagnostic) feature is that the are only animals with feathers.
One striking characteristic of birds compared to many other animal groups is their relative uniformity. Birds are indeed extraordinarily diverse in their characteristics of their plumage – color, pattern and various ‘add-ons’ such as plumes, crests, ruffs and tassels. But much of this diversity fades away at a structural level.
The forelimbs are specially modified to form wings; the bones of the wrist, hand, and fingers are fused together so that only the second digit or finger is visible.
The wings are powered by relatively enormous muscles (totaling one quarter to one third of the total body mass of some birds), most of which are attached to a deep keel-shaped structure jutting from the front of the sternum or breast bone.
The wings support the entire body weight in the air, but the hind limbs support the entire weight on the ground.
The shape and structure of the bill varies considerably among birds and these characteristics reveal the fair reliability the owner’s usual diet and way of life.
This is partly because birds cannot chew, so the bill functions as the prime food handling device.
Most seed-eating birds have deep, short, conical bills, designed to function like a nut–cracker. Fish-eating birds, such as Herons (ardeidae) and Anhingas (anhingidae), often have long, pointed, dagger-like bills for spearing prey. Carnivorous birds, such as hawks and eagles (accipitridae), have deep, powerful, sharply hooked bills for tearing flesh.
The function of teeth is largely taken over by a muscular, pouch-like organ called the gizzard. The gizzard is most strongly developed in seed-eating birds, but rather less so in those that leave mainly on insects, nectar or the flesh of other vertebrates.
Like the mammalian heart, the bird’s heart is in essence a double-action pump with four chambers, two of which regulate the flow of blood to the lungs, while the other pair recovers it from the lungs and distributes the oxygenated through the arterial system to all parts of the body.
The system of air-sacs can be visualized as a posterior set and a forward set, with the lungs suspended between them in such a way that air flows through he lungs (not in – and – out as in mammals) as it circulates throughout the air-sac system.
This means that the process of extracting Carbon dioxide from the blood and recharging it with oxygen is continuous, rather than cyclical, and is considerably more efficient than in mammalian lungs – a bird’s lung is considerably smaller in relation to its total body weight than a mammal’s lung, despite the greater oxygenation depends imposed by flight.
Birds tend to target foods resources for high nutritional value and speedy digestion. Though there are expectations, the diet of most birds is made up f small animals (including fish), insects, fruits, seeds, or nectar or a combination of these, e.g. many songbirds alternate between an insect diet in summer and a seed diet in winter.
Feathers are unique to birds. Feathers emerge from follicles deeply embedded in the skin, and many are equipped with unstriated muscles that allow some degree of movement under the bird’s control. Feathers are made almost entirely of keratin, the same substance from which horse’s hooves, tiger’s claws and human hair and fingernails are constructed. Their uniqueness lies more in their structure than their composition.
Like a cat grooming its fur, a healthy bird spends as much time preening. The bird takes each of its feathers in turn and uses it bill to nibble the length of the feather. This grooming action serves to reattach all the hooklets that may have become detached since the last preening session.
Eventually feathers wear out, and they can no longer perform their chief functions of facilitating flight and insulation. They are then shed and replaced with new ones. The process of shedding old, worn, or damaged feathers is referred to as molt.
The molt involves two distinctly separate event; the shedding of the old feather and the growth of the new one in its place. Normally the molt is a rigidly structured process as least as far as it involves the flight feathers, and often other tracts as well.
Gender is third common factor. Among birds, males frequently wear a plumage that differs conspicuously from that of females. Such differences usually apply only to adult birds. However, sometime the sexes are noticeably different even among immature or juveniles, and there are even cases where juveniles differ in ways that are not evident in adults.
More than most animals, birds use sound as a means of interacting with others of their own species and, in some cases with other species. Many birds produce sound by a wide variety of purely mechanical means.
In general, songs are those sounds used during the breeding season and involved with either courtship or the defense of territory. Songs are usually uttered by males, but in some species it is the female that sings, and in many species both sexes sing, either independently or in the form of duets or choruses.
Song has two chief functions: to proclaim territory and repel rivals, and to attract potential males.
The two functions often overlap, and no generalizations are possible even among closely related species.
Results gained in investigations suggest that mimicry in birds may have arisen because borrowing a sound from his surroundings could be the simplest way for a male songbird to increase the complexity of his song to attract a mate.
For birds, territory is an area where the occupant challenges and attempts to evict all trespassers of the same species. In songbirds territorial boundaries are often marked by perches from which the occupant sings to announce to neighbors that the territory is taken and any trespasser risks a fight. Sometimes special displays and other behaviors are used instead. Normally it the male who establishes and maintains a territory, but not always.
Many birds establish territories to secure sole rights to single resources such as food or a preferred roosting site.
Because the boundaries of territories must be continuously patrolled to ensure their security, true territories in birds are seldom larger than a few hectares, and often much less. Beyond a certain point, the time and energy cost of patrolling a territory’s boundaries exceeds the value of the resource defended.
Some predatory birds, such as many hawks, extent the concept of territory to include one of ‘home range’.
The nuclear family situation, in which a single mature male forms a pair – bond with a single mature female during the rearing of a single brood of offspring, is common to 90% of all birds. Polygyny (males with multiple mates) and polyandry (females with multiple mates) are also widespread among birds.
Many bird species habitually form pairs that last for life, while others trade partners after every brood, and some form no pair bonds at all. Where no pair bond is formed, it is usual for the females to visit males at special display grounds (which may be solitary or communal), where copulation occurs. The female leaves to build a nest, lay her eggs and rear her young without further involvement by the male parent.
A notable example of the solitary display ground is in the case of the bowerbird (Ptilonorhynchidae). Mature males build and decorate large structures (bowers) on the ground for the sole purpose enticing females to mate. Once established, such bowers are almost constantly maintained and refurbished throughout the life of the owner. Sometimes display grounds are communal, in which case they are generally referred to as leks.
Songs are used by many birds to announce their territories, repel rivals, and advertise for mates. These are reinforced, supplemented, or replaced by a wide range of visual displays. These range from simple presentations of particular plumage features, as when a European
Robin Erithacus rubecula fluffs out its breast in an attempt to intimidate a rival,
to the elaborate courtship performances involving spectacular or brightly colored plumes or similar devices.
Demand precise habitat requirements; their distribution is strongly influenced by patterns of plant diversity, which in turn are influenced by climactic factors such as temperature and rainfall.
Habitat ranges from desert to grassland to woodland and rain forest e.g. larks and pipits are common to desert and grasslands; towcans and birds of paradise have no desert inhabiting members; pigeons and doves (columbidae) are universally seen in almost faunal regions.
A Bird of prey used in falconry, any diurnal bird of prey of the family (Accipitridae).
Hawk – eye is a keen sighted.
Any diurnal bird of prey in falconry belonging to the genus – Falco characterized by long pointed wings.
A person who breeds , keeps and trains falcon or other birds of prey, one who hunts with such birds, a follower of sport on falconry.
The breeding, keeping and training of the falcons or the other birds of prey.
The sport or practice of hunting using such birds.
(Red –Tailed hawk)
The term Hawk is often applied to other birds in the family Accipitridae (such as kites, buzzard, harriers and sometimes is extended to include certain members of the family Falconidae (falcons and caracaras). The majority of hawks are more useful to humans than harmful, but thee is still widespread prejudice against them.
The Buteos, also called Buzzard hawks, are broad winged,Wide Tailed, Soaring Raptors found In The New World, Eurasia and Africa. The red- tailed (Buteo jamaicensis, see photograph), the most common North American species, is about 60 cm long, varying in colour but generally brownish and somewhat lighter below with a rufous- colour tail.
This beneficial hunter preys mainly on rod but it also catches other small mammals as well as various birds, reptiles (including rattlesnakes and copperheads), amphibians, and even insects.
There is sexual dimorphism in size females are 25% larger than the males.
The eye colour of the Hawk changes from yellowish gray when immature to dark brown in adults.
Red-tailed hawk feed on a wide variety of prey, using their powerful claws as weapons. 80- 85% of their diet consists of small rodents. Male red-winged blackbirds are often eaten because of their open visibility when guarding their nests.
Red- tails usually begin breeding when they are three years old. Red- tails tend to be monogamous, only finding a mew mate when theirs dies. A sure sign of breeding in the spring is that the male and female perch in the same tree to hunt. During courtship the birds soar near each other in circles with flights lasting 10 minutes or more. Mating usually takes place following this. One to five eggs are laid around the first week of April. Both parents help to incubate the eggs
Red-tailed pairs will remain together for years in the same territories. The birds are very territorial. The female is usually the more aggressive partner around the nest itself, whereas the male is more aggressive when it comes to the territory boundaries. The red- tailed has a serial of aerial behaviors.
The red tail hawk builds its nest at the edge of a Forest in the large trees surrounded by open areas. Their main territory consists of large woodlots surrounded by open fields and pastures for foraging.
Red- tails are very susceptible to albinoism
Red- tails will often use power lines as perches.
The red- tail is often the victim of car accidents, shooting and steel traps
Red- tails are a sign of good luck in the Mescalero Apache tradition.
The evolution of the crop has been of vital importance to the pigeon. This bilobed diverticulum (a Blind Pouch) of the oesophagus, located just posterior to the buccal cavity serves as a storage organ. Subsisting for the most part on seeds, buds, leaves, and fruits, form of protein content and nutritive value, pigeons must consume large quantities during each feeding day. The ability to store food has enabled some pigeon to be represented among the small list of
birds - geese and certain galliform birds etc.
When feeding on the ground, a pigeon must be looking downwards much of the time and therefore is vulnerable to predators such as foxes.
Many species possesses signal marks that becomes prominent in sudden flight, just as some rabbits display the white under parts of the tail.
A consequence of feeding in a flock is that differences in individual attributes are more readily manifested, and this finds expression strongly developed social hierarchy (peck order). In competitive situations submissive individuals are frequently supplanted by more dominant individuals, and efforts to avoid conflicts result in their getting less food.
There is no evidence that social behavior has evolved as a mechanism where populations can achieve self regulation of their numbers, as has sometimes been suggested.
In most pigeons, a male in reproductive condition acquires a territory which it proclaims with an advertisement call, usually a variant typical pigeon “coo” sound. Intrusion from other pigeons is prevented, at first by threat displays involving sleeking the plum, stretching the head forward, and partially raising the wings. If the displays of aggressiveness are ineffective the male then attacks intruder, pecking at the opponent and delivering sharp blows with carpel joint of the wing.
Females behaving submissively are gracefully tolerated, particularly by unpaired males.
A sexually mature male typically approaches a submissive member of the same species with the bowing display (in most pigeons this occur within a previously acquired territory, but not invariably). Bowing is primarily an aggressive display, involving tendencies to advance and attack and to mount and copulate. It is usually accompanied by vocalization – the bow call.
Most pigeons are multibrooded and have long breeding seasons.
It’s the dove of peace. If you put them in a little space, they peck at each other. But that’s the human problem. In a tree, they don’ peck at each other.
North American raven is considered by ornithologists to be the most intelligent of all the birds. There have been countless legends about raven especially it being responsible for creating the world. Ravens have a colorful personality and an idiosyncratic behavior.
Ravens share a very special relationship with wolves: the raven’s claw alerts the wolf of its prey. The wolf then kills the prey and raven comes for its share. They mutually celebrate by singing.
Peregrine falcon is also known as duck hawk. It is a bird of prey belonging to the family Falconidae.
Bluish gray above with under parts white to yellow with black barring, peregrines range about 13 to 19 inches long. They are strong and fast. They fly high and dive at tremendous speed and killing by impact. The prey include ducks and shorebirds.
Peregrines inhabit rocky open country near water where birds are plentiful. The usual nest is a mere scrape on a high cliff. The clutch is two to four reddish brown eggs. The young fledge in five or six weeks.
The bald eagle is in the family of sea eagles (Haliaeetus), found only in North America. It is one of only three white headed species (Leucocephalus), which is the largest species of eagle in the world.
Like all birds, they have a fast, warm metabolism and must eat a tremendous amount to survive. Primarily a scavenger, the bald eagle hunts only when there is no easier available source of food. The favorite prey among coastal eagles is fish, especially salmon.
The bald eagle is not strictly a migratory species. Some individuals stay in the same area year round, or migrate towards seasonal food sources. They don't necessarily migrate in groups.
The obvious characteristics of the sea-gulls are their constant hunger, their hoarse voice and their equal sharing of the child care between female and male birds. The fact that sea-gulls also have other abilities apart from eating, surviving and picking at one another is very well documented in the visionary book and film of Richard Bach ‘Jonathan Livingston Sea-gull’.
Psittacinae (family Psittacidae) Macaws are the most colorful of large parrots. Macaws eat much fruit and also crack nuts open with their extremely powerful beaks, using their blunt tongues to extract the nut meat. They are bare faced and may blush when excited.
Tension between INDIVIDUALITY AND THE GROUP Tension between the sense of self and the need for expression
Expression of what is really oneself versus being an integral part of family and society
Individuation. Reconciliation. Old souls.
It is caught in social duties and obligations. I’m caught this way,but I need to be another way. This is fairly advanced process. In Jungian sense, it is the process of individuation. It is the process of becoming oneself.
Vultur (family Cathartidae) – the Andean condor, Vultur gryphus, and the California condor, Gymnogyps californianus. They are two largest flying birds, each about 130 cm long and 10 kg in weight. They breed every other year, laying a single egg per pair, greenish or bluish in color, about 10 cm long.
The condor is inseparably connected to South America and Andes. These giant vultures are habitual long distance travelers, and often fly hundreds of miles on one day. It plays an important mythological and cultural role among the native people of South America.
Condors are true kings among the birds. They are unique and amazing in may ways: their wingspread, their flying strength and height, the length of their brooding period, the time until their sexual maturity and their life span are rarely surpassed by any other bird.
The condor feeds almost entirely on carrion (dead animals). They have excellent eyesight which enables them to spy from great heights. Their sense of smell is supposedly relatively weak.
Condors engage in lasting partnerships. The seem calm and noble, sociable while feeding, and rather shy in the wild.
9. Far reaching connections and
is a bridge to the hereafter
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