The incubation period of the egg of the koel is shorter than that of the crow, the consequence is that when, as usually happens, there is one of the former and several of the latter in a nest, the young koel is invariably the first to emerge.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

At first the call of the koel is a squeak, but later it takes the form of a creditable, if ludicrous, attempt at a caw.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

When the summer rain comes, so does the distinctive call of the koel, or rainbird.    From Wordnik.com.  [Archive 2009-02-01] Reference

The sides of the mouth of the young koel are not fleshy.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

Somewhere a koel was calling out in abandoned happiness.    From Wordnik.com. Reference

He cursed the koel, for the gentle mood had slipped from Elizabeth.    From Wordnik.com.  [Caste] Reference

The koel extends into the Punjab and is heard throughout Northern India.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

The sight of the koel affects a crow in much the same way as a red cloth irritates a bull.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

I have not only heard the koel calling there, but have seen a young koel being fed by crows.    From Wordnik.com.  [Birds of the Indian Hills] Reference

The koel is, if possible, more vociferous than ever, especially at the beginning of the month.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

No sooner are their backs turned than the hen koel slips quietly into the nest and deposits an egg in it.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

Instead of the crescendo shriek of the koel, the pleasing double note of the European cuckoo meets the ear.    From Wordnik.com.  [Birds of the Indian Hills] Reference

The brain-fever bird and the koel call so seldom in September that their cries, when heard, cause surprise.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

Among the latter the most prominent are the grey-necked crow, the koel, the myna, the king-crow and the magpie-robin.    From Wordnik.com.  [Birds of the Indian Hills] Reference

The skin of the koel is black, that of crow is pink for the first two days of its existence, but it grows darker rapidly.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

The voice of the koel is heard throughout the hours of light and darkness in May, so that one wonders whether this bird ever sleeps.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

Towards the end of the month the fluty call of the koel, another hot-weather chorister, may be heard in the eastern portions of northern India.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

The period of incubation for the koel's egg is shorter than that of the crow, hence at the outset the baby koel steals a march on his foster-brothers.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

Barlow exclaimed in disgust -- "that's India; the fever-bird, the koel, harbinger of the hot-spell, of burning sun and stifling dust, and throbbing head.".    From Wordnik.com.  [Caste] Reference

I would therefore attribute the presence of the koel at Almora and its absence from other hill stations to the fact that at Almora alone the koel's dupe occurs.    From Wordnik.com.  [Birds of the Indian Hills] Reference

There was also a 'Kummi' in Anandha Bhairavi and a fine lullaby towards the end where the shrill note uttered by the koel is equated with the panchama swaram in a poetic manner.    From Wordnik.com.  [The Hindu - Front Page] Reference

During the earlier part of the month the notes of the koel and the brain-fever bird are heard on rare occasions; before October has given place to November, these noisy birds cease to trouble.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

From the time of the laying of the first egg until the moment of the departure of the last young bird, one or other of the parents always mounts guard over the nest, except when they are chasing a koel.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

Kuil ... ... .. koel.    From Wordnik.com.  [Birds of the Indian Hills] Reference

The koel takes full advantage of this fact.    From Wordnik.com.  [A Bird Calendar for Northern India] Reference

Khambodi, kummi, koel.    From Wordnik.com.  [The Hindu - Front Page] Reference

Bulbul, types of mynahs, tailor birds, hoopoe, koel, red-whiskered bulbul, cormorants, spotbill ducks, kingfisher, wagtail, swallows, among others.    From Wordnik.com.  [The Times of India] Reference