Saffron finch (Sicalis flaveola)

Aug 19, 2018 Features / Columnists, Interesting Creatures in Guyana

The saffron finch (Sicalis flaveola) is a tanager from South America that is common in open and semi-open areas in lowlands outside the Amazon Basin.
They have a wide distribution in Colombia, northern Venezuela (where it is called “canario de tejado” or “roof canary”), western Ecuador, western Peru, eastern and southern Brazil (where it is called “canário-da-terra” or “native canary”), Bolivia, Paraguay, Uruguay, northern Argentina, and Trinidad and Tobago. It has also been introduced to Hawaii, Puerto Rico and elsewhere.

Saffron Finch

Although commonly regarded as a canary, it is not related to the Atlantic canary. Formerly, it was placed in the Emberizidae, but it is close to the seedeaters.
The male is bright yellow with an orange crown which distinguishes it from most other yellow finches (the exception being the orange-fronted yellow finch). The females are more confusing and are usually just a slightly duller version of the male, but in the southern subspecies S. f. pelzelni they are olive-brown with heavy dark streaks.
Typically nesting in cavities, the saffron finch makes use of sites such as abandoned rufous hornero (furnarius rufus) nests, bamboo branches and under house roofs – this species is tolerant of human proximity, appearing at suburban areas and frequenting bird tables.
They have a pleasant but repetitious song which, combined with their appearance, has led to them being kept as caged birds in many areas. Males are polygamous, mating with two females during the nesting season, and territorial, which has led to the species being used for blood sporting with two males put in a cage in order to fight.
Generally, true finches are small to medium-sized passerine birds in the family Fringillidae. They have stout conical bills adapted for eating seeds and often have colourful plumage. They occupy a great range of habitats where they are usually resident and do not migrate. They have a worldwide distribution except for Australia and the polar regions. The family includes species known as siskins, canaries, redpolls, serins, grosbeaks and euphonias.
Many birds in other families are also commonly called “finches”, including some species in the very similar-looking waxbills or estrildid finches (family Estrildidae) of the Old World tropics and Australia; several groups of the bunting and American sparrow family (Emberizidae); and the Darwin’s finches of the Galapagos islands, now considered members of the tanager family (Thraupidae).
Finches and canaries were used in the UK, Canada and USA in the coal mining industry, to detect carbon monoxide from the 18th to 20th century. This practice ceased in the UK in 1986.
The taxonomy of the finch family, in particular the cardueline finches, has a long and complicated history. The study of the relationship between the taxa has been confounded by the recurrence of similar morphologies due to the convergence of species occupying similar niches. In 1968, the American ornithologist Raymond Andrew Paynter Jr. wrote:
“Limits of the genera and relationships among the species are less understood – and subject to more controversy – in the carduelines than in any other species of passerines, with the possible exception of the estrildines [waxbills].”
Beginning in around 1990 a series of phylogenetic studies based on mitochondrial and nuclear DNA sequences resulted in substantial revisions being made to the taxonomy. Several groups of birds that had previously been assigned to other families were found to be related to the finches. The Neotropical Euphonia and the Chlorophonia were formerly placed in the tanager family Thraupidaedue to their similar appearance but analysis of mitochondrial DNA sequences revealed that both genera were more closely related to the finches. They are now placed in a separate subfamily Euphoniinae within the Fringillidae.
The Hawaiian honeycreepers were at one time placed in their own family, Drepanididae but were found to be closely related to the Carpodacus rosefinches and are now placed within the Carduelinae subfamily. The three largest genera, Carpodacus, Carduelis and Serinus were found to be polyphyletic. Each was split into monophyletic genera.
The American rosefinches were moved from Carpodacus to Haemorhous. Cardueliswas split by moving the greenfinches to Chloris and a large clade into Spinus leaving just three species in the original genus. Thirty seven species were moved from Serinus to Crithagra leaving eight species in the original genus. Today the family Fringillidae is divided into three subfamilies, the Fringillinae containing a single genus with the chaffinches, the Carduelinae containing 183 species divided into 49 genera, and the Euphoniinae containing the Euphonia and the Chlorophonia.
The finches have a near-global distribution, being found across the Americas, Eurasia and Africa, as well as some island groups such as the Hawaiian islands. They are absent from Australasia, Antarctica, the Southern Pacific and the islands of the Indian Ocean, although some European species have been widely introduced in Australia and New Zealand.
Finches are typically inhabitants of well-wooded areas, but some can be found on mountains or even in deserts.
The finches are primarily granivorous, but euphoniines include considerable amounts of arthropods and berries in their diet, and Hawaiian honeycreepers evolved to utilize a wide range of food sources, including nectar. The diet of Fringillidae nestlings includes a varying amount of small arthropods.
True finches have a bouncing flight like most small passerines, alternating bouts of flapping with gliding on closed wings. Most sing well and several are commonly seen cagebirds; foremost among these is the domesticated canary (Serinus canaria domestica). The nests are basket-shaped and usually built in trees, more rarely in bushes, between rocks or on similar substrate. [Source: Wikipedia]