Mobile bird identification
Bird Field Guide
Adult Male
This male Siskin shows the striking black and yellow wing pattern. Note the faint dark streaks on the birds green back and the dark streaks on the birds flank.

Siskin

Carduelis spinus
Finches Menu
Thanks to:http://commons.wikimedia.org/wiki/Carduelis_spinus (Modified)
Other Finches
Blue-grey head
White wing patches
Pink underside
Brown back
Dark wings
Mottled head
Orange breast
Dark spots on flank
White rump
Dark back and wings
Pale grey head
Pink breast
Orange-brown back
Pale red forehead
Dark wings
Black streaked breast
Tawny-buff face
Streaked brown back
Pink rump
Dark wings
Pink breast
Pink forehead
Small bill
Brown streaked body
Whitish streaked underside
Red face
Black and white head
Bright yellow on wings
Tawny brown back
Pale underside
Green-yellow body
Stout bill
Yellow wing bar
Large heavy finch
Dark around eye
Black cap
Yellow head and breast
Black and yellow wings
Yellow wings
White underside
Bright yellow forehead
Yellow breast
Green and black wings
Forked tail
Female brownish
Chaffinch
Brambling
Linnet
Twite
Redpoll
Goldfinch
Greenfinch
Siskin
Serin
Bullfinch
Crossbill
Hawfinch
Black cap, bill and nape
Bright red underside
Grey back
Black wings
White rump
Large heavy bill
Bright brown head
Brown body
Black wings
Whitish wing bar
Hooked, crossed bill
Red or green body
Dark wings
Dark eye
Habitat specific
Chaffinch
Brambling
Linnet
Twite
Redpoll
Goldfinch
Greenfinch
Siskin
Serin (Rare)
Bullfinch
Hawfinch
Crossbill
Distribution:
A fairly common resident breeding bird in middle  Europe and UK. Numbers greatly increase in winter due to birds moving from Northern regions of Europe.

Habitat:
A bird of spruce and pine tree forests, in winter more widespread and commonly found in alder trees. A regular visitor to garden bird feeders in cold weather.
Notes:
The Siskin is closely associated with conifers however in winter it can be found in small flocks almost anywhere, although it is not usually a ground feeder like most other finches in winter. Siskin can be acrobatic when feeding and often hang upside down on feeders or branches.
Order: Passeriformes

Family: Fringilladae

Genus: Carduelis

Species: C. spinus
Identification points of a Siskin
Female Siskin
Siskin flying
Black cap and chin
Yellow head and breast
Black and yellow wings
Green back with dark streaks
White streaked underside
Adult Female

The male Siskin is a mostly a yellow/green bird with black on the head, wings and tail. Distinctive in flight with a yellow rump and wing bars.

The female Siskin lacks the black head markings of the male and has a generally much duller appearance. The females breast is heavily streaked and shows no yellow.
Male Siskin
Female Siskin
Thanks to:http://commons.wikimedia.org/wiki/Carduelis_spinus (Modified)
This female shows the extent of the black streaking, not present on the male bird, also note the lack of black on the head. The female still has bright yellow wing bars and tail markings.
Small size for a finch
Deeply forked tail
Note: The female birds in this video appear to have white wing bars, they would usually be pale yellow, it could be that they are young immature females, it could also be a more Northern race as the birds were filmed in Eastern Europe. Any ideas please contact me.