Finch

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Finch

Scientific Classification
Kingdom: Animalia Phylum: Chordata Class: Aves Order: Passeriformes Family: Fringillidae
Subfamily
Emberizinae Fringillinae Peucedraminae See: Finch taxonomy
Saffron Finch

Introduction

A finch is a bird that belongs to the family Fringillidae. It has had many scientific studies and is the source of one of modern sciences most respected naturalist, Charles Darwin. There are fifteen species of Passerine birds in finches. They are also called as perching birds and song birds The most famous thing about finch is its beak. Finches usually eat and obtain everything by their beaks. Finch can be divided by shapes of beaks. Characteristics of finch are very similar to other kinds of birds.

Anatomy

Shape of finch's beak and tongue

A finch is a bird that shares almost the same characteristics as birds. A finch has a head, a body, two wings, two legs, and a tail. Also like the other kinds of birds, a finch is covered with feathers.There are many different colors and patterns of feathers. The basic color of finches are brownish and greenish.Usually white color is on finches wings. The most significant characteristic of finches is that they have strong and steady beaks. Some finches might have huge beaks and others might have small beaks.[1] A size of finch ranges from 3" to 8".[2] It is kind of hard to distinguish between the female finch and the male finch. A small difference is that when they stand next to each other, male finch is a little bit more taller.[3]

Beak

When people think about the finches, the first thing that they will notice is the finch's beak. A finch usually has a strong, hard, and steady beak.[4] People can distinguish the finches by their beaks. Beaks are usually used for their food. They usually open the seeds with their beaks[5].Also finches can use their beaks for eating insects and pecking woods. Each finch has different shape of beaks.[6] If one finch usually eats seeds or nuts, it might has a big and hard beak. If other usually eats insects, it might has a slender beak.[7]

Vocal

Most birds have vocal organs. They use voices for many ways. Finches are actually quiet birds. However, they use their voice to communicate with others and warn the predators. Male finches use their voice to protect a territory and attract female finches.[8]

Reproduction

female and male finch in the nest

Courtship

Life cycle of finches are the same as other birds. Finches breed when the female is over one year old and the male is under five year old. They have to be at least eight months old before they start to breed. Also they have to be healthful and well fed.[9] When the finches mate, the female finch will try to attract the male finch and ask for food. The male finch will put the food into the female's mouth. During the mating season, the male finch will carry branches or sticks around to build their nest because to lay their eggs, they must build their nest first. And then, the female finch will lay the eggs in there. Unlike other birds, the male finch will try to defend the female finch instead of protecting thier territory.[10] When they have successed breeding, the female finch will lay between one and ten eggs.[11] Reproduction of finches are related to rainfall. So they reproduce many times in the year.[12]

Egg and Migration

Finches usually stay in the egg for two weeks. After two weeks, they hatch from the egg. When they just hatch from the egg, they cannot see anything. They are most likely blind. When they are borned, they only think about their parents because they have to stay in a warm place and they also have to be fed.[13] Finches will leave the nest when they become almost three weeks old bird. When they are grown up, they will start to get ready for their migrations. Usually, finches migrate to the south in fall. In the spring when the weather gets warmer, finches come to the north and get ready for the mating. Some finches migrate when the food is needed. Others do not move at all.[14]

Ecology

finch's nest

Finches are usually found in America, Europe, Asia, and Africa. They like to live around forests,shrubby areas, savannas, gardens, grasslands, and agricultural areas.[15] Sometimes they are found on mountains or deserts.[16] They usually live in the nest. When the female and the male finches get ready to breed, they build a basket- shaped nest. The female finch will lay eggs in the nest. It will also heed her finches.[17] Nests are usually made of grasses, twigs,and, leaves.[18] Finches can be distinguished by food. Some finches eat the insectsand, the others eat the woods, seeds and plants. Also some of other finches eat the ticks from other animals.[19]

Evolution and Finches

CharlesDarwin

Main Article: Darwin's finches

The beak evolution of Galapogos Finches ("Darwin's Finches") helped Darwin postulate his theory of evolution, although variation in beak size demonstrates only microevolution of preexisting genetic framework. Furthermore, the changes in beak size is observed over short spans of time, supporting creationist theories of speciation, rather than evolution.[20]

“

Evolution has proven predictable in the short term but unpredictable over the course of decades, they report. Climate change has been a powerful influence guiding the evolution of the finches--and its effects turn out to be surprisingly complex. Darwin's Avian Muses Continue to Evolve Science April 26 2002: 633

”

Videos

Finches

Finches mating

Finch Facts

The House finch (Carpodacus mexicanus) became the most common garden bird in the United States. However, until 1940, A house finch only lived in the west. In 1940, a house finch was shipped to New York illegally

The size that the largest finch can actually reach is 23cm (9 inches). It will weigh around 79 grams. The name of the largest finch is Mycerobas affinis, Collared Grosbeak. It usually lives in South -East Asia.

The Size that the smallest finch can actually reach is 9.5cm. This finch will not grow larger that that. The weigh is up to 8.4 grams. The name of this smallest finch is the Andean Siskin (Carduelis spinescens).

The waxbill family (Estrildidae) look alike to finches that sometimes they have the word finch on their common name.[21]

Gallery

Red crossbill (Loxia curvirostra) Genus: Loxia	Purple Finch (Carpodacus purpureus) Genus:Carpodacus	Zebra Finch (Taeniopygia guttata) Family:Estrildidae	Gouldian Finch (Erythrura gouldiae) Family: Estrildidae
Purple finch (Carpodacus purpureus) Genus:Carpodacus	Saffron Finch (Sicalis flaveola) Family: Thraupidae	House Finch (Carpodacus mexicanus) Subfamily: Carduelinae