Legs have two toes in front and two in the rear which help in firm grip. Parrots have rounded head, strong wings and short neck. Characteristic features of parrots include a strong, curved bill, an upright stance, strong legs, and clawed zygodactyls feet. The tail accounts for a large portion of their total length. Their average single wing length is about 1517.5 cm (5.96.9 in) as in fig (2). Rose-ringed parakeets (parrot) measure on average 40 cm (16 in) in length including the tail feathers. They are also highly maneuverable in flight. The wings are large and have low wing loadings pigeons have strong wing muscles (wing muscles comprise 3144% of their body weight) and are amongst the strongest fliers of all birds fig (1). Pigeons and doves are stout-bodied birds with short necks, and have short slender bills with a fleshy care. They are most powerful fliers used by human agency. Well developed sternum, thick plumage and long pointed wings. (4) The main intension for choosing these birds is, because pigeons have The basic flight parameters are body mass, wing length, wing span, wing area, and effective breadth of the wing, wing loading, aspect ratio, velocity, angle of attack. The flight parameters of both birds are to be calculated. In the present analysis we have tested the airflow over the birds wings of pigeon and parrot with alula and without alula. The biological wing of the bird has a complex structure and up and down movements integrated with all other subsystems required for flight (2
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