* Eurasian Bittern ; in spring, the male's ' booming ' song can be heard.

The male's song is high and twittering like a Dunnock.

The male's song, given throughout the year, is a soft twitter of melodious chirps.

The male's song is a scratchy oak-a-lee, accompanied by a display of his red shoulder patches.

The male's song consists of short pleasant warbling strophes, interspersed with fluid whistles.

Later in the evening the male's distinctive song can be heard and is known locally as the ‘ Bootle Organ ’.

The male's song begins with srrih, srrih followed in turn by a few twittering notes, a longer descending ripple, and a whistle that falls and then rises.

The male's song is composed of random chattering phrases and can include mimicry of other species.

The male's distinctive song is useful for identification, as no other member of the genus mimics other birds to any significant extent.

The male's call includes sometimes soft warbles of jeew or chir-wi or the melodious song chiti WEEW wewidoo ( Sibley, 2000 ).

The male's song is a fast twittering given from a bush or in flight.

The male's mating song is a rapid nasal qui-qui-qui-qui-qui-qui-qui.

The male's song is a musical, distinctive series of descending notes followed by a warble.

Each male's song is different, although birds of the same bloodline will exhibit similarities, and all finches will overlay their own uniqueness onto a common rhythmic framework.

The male's song is a loud gurgle used to declare ownership of territory ; western males have a more varied repertoire.

The male's song is a rattling trill.

The male's song is a short high-pitched trill.

The male's song is a clear warble.

The male's song is a series of buzzy notes, with the earlier notes doubled and the next to last note high.

The male's song is unknown, but unidentified nightjar calls heard in the breeding area include a rapid churring, and a knocking sound.

The male's song is a mixture of rasping sounds and svee-svee notes.

Both sexes sing ; the faster rhythm of the male's song is one of the few ways to differentiate the sexes.

The second button from the top of a male's uniform is often given away to a female he is in love with, and is considered a way of confession.

The male's call, goo-ko, is usually given from an open perch.

A fading Chinese tradition is to use a style name, or courtesy name, called zì ( 字 ) in place of a male's given name in adulthood.

* The original spelling of Casper ; a male's given name

The main vocalisation is the male's loud advertisement call which seeks to both encourage a female to approach and discourage other males from intruding on its territory.

When seen from above, a sexually mature female hamster has a trim tail line ; a male's tail line bulges on both sides.

Females glean clues regarding a male's suitability as a mate from these calls, showing a preference for larger males.

The identification must be made by looking at the comb, or eventually from the development of spurs on the male's legs ( in a few breeds and in certain hybrids the male and female chicks may be differentiated by color ).

The size of the territory also depends on the available resources ; depending on the part of Africa, the size of a male's territory can vary greatly from.

The male's testes may also be visible externally from scrotal swelling.

Although a male-line relationship is suggested by the fact that Louis II and Rainer III shared the last name Grimaldi, this actually resulted from Prince Pierre taking his wife's maiden surname as his own surname, which is a form of " false paternal event " ( a situation in which a male's surname differs from that of his genetic father ).

If an intruding male manages to evict another male from the nest, it may cannibalize the other male's young.

As with the English name, the scientific name also refers to the male's obvious white neck crescent, being derived from the Latin words turdus, " thrush ", and torque, " torc " ( neck ring ).

The common name for the Red-winged Blackbird is taken from the mainly black adult male's distinctive red shoulder patches, or " epaulets ", which are visible when the bird is flying or displaying.

The female grabs food from the male's talons with hers while flipping upside-down.

The male's call is a loud krek krek, from which the scientific name is derived.

The male's territory can vary from 3 to 51 ha ( 7. 5 – 126 acres ), but averages 15. 7 ha ( 39 acres ).

The original English name for this bird, dating back to at least 1465, is the ree, perhaps derived from a dialectical term meaning " frenzied "; a later name reeve, which is still used for the female, is of unknown origin, but may be derived from the shire-reeve, a feudal officer, likening the male's flamboyant plumage to the official's robes.

This bird received its name from the fact that the male's colors resemble those on the coat-of-arms of Lord Baltimore.

Elephant seals derive their name from their great size and from the male's large proboscis, which is used in making extraordinarily loud roaring noises, especially during the mating competition.

Females are much smaller can range from 400 to 900 kg ( 990-2, 000 lbs ) in weight, or roughly a third of the male's bulk, and measure from 2. 5 to 3. 6 m ( 8. 2 – 11. 9 ft ).