Flight formation of Black-headed Ibis so nicely captured. This 'Diamond formation' as Madam Shyamala has already mentioned, is a difficult flight operation for aircrafts, so easy for birds to maintain distance.
In case of 'V' formation, the increase in efficiency is about 71%; we see them when flocks of birds flying high and covering long distances before and after winter.
Thanks for sharing. SaktiWild
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