All adult birds molt at least once a year. Molting is a process where old feathers are replace by new feathers. As much as a third of the bird’s body weight is replaced during molting so they need a lot of protein. Many song birds molt near the end of the summer, and they can ...
The heavy muscular gizzard , or muscular stomach (for mechanical digestion), and the proventriculus , or glandular stomach (Figure 11鈥 1), are located within the main mass of the bird's body. Less modification is evident in the avian small intestine and rectum; however, a cloaca is ...
Bird’s beak esophagusApple core lesionDiverticulumDiverticulaParaesophageal herniaHiatal herniaEsophageal cancerLeiomyomaRadiation strictureImaging of the esophagus is best approached in a multidisciplinary fashion. The surgeon and radiologist bring different attributes to the interpretation of the images, and a...
Near the shoulder joint, there is the bony projection of the shoulder blade which resembles a bird’s beak. It is called the coracoid process. The upper arm bone is called the humerus. At the top, it has a round head, which is about the size of a golf ball, as well as two bony ...
Adaptations for flight not only include the obvious anatomical features (wings and feathers) but they also are reflected in a bird's skeletal, digestive, respiratory and, cardiovascular systems. Let's take a tour through the major external and internal features of a parrot's anatomy... Respirato...
The hyacinth macaw (Anodorhynchus hyacinthinus) is the most majestic bird of the central and South America. It is the largest and perhaps the most impressive of all parrots. The bird has the prominent dark blue plumage, yellow eye along with the long tapering tail. Hyacinth macaw is found...
Harris hawk(Parabuteo unicinctus)is a medium-sized bird of prey which is found in much of the southwestern United States, central Argentina, and south to Chile. The bird is threatened in many areas and is also disappeared from its former range including lower Colorado River Valley. Unlike many...
Female cockatiels tend to be closer to humans or their owners, while males are more attention-seeking. Cockatiels are considered the most widely-kept type of bird, and with proper training, they can learn to know their names. TAXONOMIC CLASSIFICATIONHABITATCockatiel...
Chicken is a bird, belonging to the family Phasianidae, scientifically called Gallus gallus, and is a domesticated subspecies of the wild red junglefowl. Domesticated animals or in this case birds share a sustained multi-generational relationship and are dependent on reproduction, care, and supply ...
This chapter covers the anesthesia, anatomy and physiology of bird groups. The main defensive weapon of birds is the beak, although the sharp talons of som... D Heard - Zoo Animal and Wildlife Immobilization and Anesthesia 被引量: 0发表: 2014年 USE OF THIAFENTANIL-MEDETOMIDINE FOR THE INDUC...