Birds from the clade Avialae or class Aves are commonly seen as feathered, two legged winged egg-laying warm-blooded vertebrates.
Ranking at the top of the tetrapod class is the Aves with the most extant species of over ten thousand. Species still in existence to day belonging to the Modern-day birds of the subclass of Neornithes and most recent common ancestor of all living birds can be seen ranging in size from the two inch bee hummingbird to the nine foot ostrich.
Facts About Birds
▪ Modern birds are generally portrayed as having a beak with no teeth, feathers, laying eggs, a lightweight but well build skeletal structure, a high metabolic rate and a four-chambered heart.
▪ The most recent species of birds to date without wings was the New Zealand moa which contained nine species of which the two largest were the Dinornis robustus and Dinornis novaezelandiae often reaching a height of twelve feet with its neck outstretched and having a weight of about 510 pounds. The moa is thought however to have become extinct during the 16th century.
▪ The first classification of birds was established in 1676 by John Ray and Francis Willughby in their Ornithologiae volume. This classification was late modified by the Swedish botanist, physician and zoologist Carl Linnaeus in 1758 formulating the taxonomic classification still used today.
▪ Based on biological and prehistoric remains, nearly all scientists have acknowledged the theory that all birds are descendants from a specialized suborder of bipedal saurischian dinosaurs primarily carnivorous later evolved herbivory, omnivore and insectivory.
▪ The earliest known bird fossils today is thought to have originated from the Tiaojishan Formation dating as far back as the middle-late Jurassic period (Bathonian-Oxfordian stage) around 160 million years ago and included the Aurornis xui, Anchiornis huxleyi, and the Xiaotingia zhengi. A large number of these early birds shared uncommon anatomical characteristics which could possibly be ancestral to modern birds but subsequently lost during evolution such as enlarged claws existing n the second toe, as well as hind wings or long feathers for covering the feet and hind limbs and possibly used for arial navigation.
▪ The first, most abundant and diverse lineage of short-tailed avialans to evolve were the enantiornithes commonly referred to as “opposite birds” due to the reverse build of their shoulder bones to that seen within the modern bird.
▪ Birds are known to primarily communicate using visual and auditory signals which can exist or occur between different species as well as within species. Occasionally birds may use their plumage to demonstrate social dominance, or make threatening displays often seen within some species like the sunbittern’s mimicry, impersonating a large predator to prevent the attack of hawks to protect their young.
The Cornell Lab of Ornithology All About Birds Webcam
Founded by the staff at the Cornell Lab of Ornithology, the All About Birds Website was developed to serve as one of the most comprehensive and informative web based resource accessible for anyone interested in North American Birds, bird conservation, and bird watching free of cost.
The Cornell Lab or Ornithology in its mission to interpret and conserve the biological diversity of birds through education, research and national science focused on birds includes a number of featured Bird Cams in their website of a number of bird species included the Barn Owls, the Hellgate Ospreys as well as a live Cornell Lab FeederWatch hosted by Wild Birds Unlimited at Sapsucker Woods.
Cornell Lab of Ornithology Live Bird Webcams
BirdNote Bird Webcams
Founded in 2004 as a project under the care of Seattle Audubon Society in the United States BirdNote was established as a product and vision of an enthusiastic group of individuals dedicated to the conservation of birds and the environment.
The BirdNote.org website, companion to BirdNote radio services via the Western Washington affiliate KPLU 88.5FM offers individuals passionate about birds an number of additional resources to increase their knowledge of birds, birding and the conservation. Included within the “GALLERY section of the BirdNote website is a number of featured nest and feeder webcams of a number of bird species such as a live webcam from a peregrine falcon nest in Montreal, Canada, Bella the Hummingbird and a Bald Eagle Neat located at Berry College Mount Berry, Georgia.
The Raptor Resource Project Bird Webcams
Established as a non-profit organization in 1988 the Raptor Resource Project focuses primarily in the conservation of falcons, hawks, owls, ospreys and eagles by improving, creating and directly maintaining over 40 nests and nesting sites. The Raptor Resource Project bird cam first began as a collaborative effort between the Raptor Resource Project and staff at the Xcel Energy’s Alan S. King plant out of the notion of connecting an existing monitor to the internet exulting in the first internet bird cam known as “Mae’s Internest” subsequently becoming the most trafficked corporate website on the internet.
The Raptor Resource Project in 2009 began their own webcam program at the Bald eagle nest in Decorah, Iowa. Today the Raptor Resource Project streams live bird cams to more than 200 million viewers in over 183 countries via USTREAM allowing individuals to have an intimate access to the natural world of birds, bird nesting and conservation of the environment.
Below are some of the broadcasted link of the Raptor Resource Project.