Their pencas like a shell gives your name, dark with penca in bone color. It is one of most used for fishing feathers and the more scarce. 

Flies: Used mainly for early season flies.

Sangre de Toro Wet Fly

Favorita Pardo Wet Fly

Just like Pardo Aconchado, with sparse or spaced penca.

Flies:

Pardo Green Floss Wey Fly

Wasp Wet Fly

Flies:

Tabac Wet Fly

Its color is between the roebuck hair and the flor de escoba cock. Other variety needed for summer flies.

LIGHT PARDO CORZUNO. Feathers are highly pigmented. Beige, or light brown background color feather with small black pencas.

Flies:

Saltipajo, Seda Amarillo Limón, Gris Claro Corzuno...

DARK PARDO CORZUNO. Feathers are highly pigmented. Black background color feather with beige or light brown small size pencas.

Named for its dark tone and fine mottling similar to roebuck hair. Flies: it goes well to early season flies.

Flies:

Seda Musgo Pardo, Seda Morado, Seda Gris Culo Rojo, Morado Cardenal...

Its color is similar to red hair roebuck.

Flies:

Pardon Wet Fly

Cinnamon Toast Floss Wet Fly

Mahogany Floss Wet Fly

Wine Condor Caddis Fly

Yellow or orange background color feather with black “pencas” of different size and distribution.

Its name comes from a plant called FLOR DE ESCOBA with a shade yellow reddish. Used primarily for flies from halftime until the summer and flies that we use during the "sereno" .

"Sereno": Spanish expression that refers to the time of day in which begins to produce the sunset.

Moscas:

Seda Caramelo Pardo, Seda Salmón Pardo, Bandera Española, Seda Oro Viejo Pardo...

Just like Pardo Flor Escoba but on clear tone.

Just like Pardo Flor Escoba but on dark tone.

Flies:

Seda Carne Pardo, Irisada Carne...

Named because its fire reddish tone.

Flies:

Seda Butano Flor de Escoba

INDIO LIGHT GREY: Feather uniform, without spots and light grey color.

Its color is between roebuck hair and the flor de escoba cock.

Flies: Essential in summer flies.

Seda Rosa Palo, Seda Garbanzo, Crema Cristal...

Feathers used in spring, more clear than the acerado oscuro cock, and that it is fine for halftime and from summer flies.

INDIO DARK GREY: Feather uniform, without spots and dark grey color.

Named for its dark hue, resembling the brightness of steel and has a very fine mottling similar to deer hair.

Flies: This darker variety is used in flies from beginning of season and halftime, like SedaMorado Pavo Real, Sil, Seda Crema Negisca...

Bright black feather very scarce and difficult to find. Flies: Predominantly tied in early season and spring and summer flies.

Falangista, Hormiga Común, Roja Brinca Negra, Saltona Negra...

Feather uniform without spots and White color.

Flies:

Often used for flies in "sereno" such as

Seda Rojo Palometa

Hormiga Reina Ala Blanca

Seda Amarillo Palometa... 

"Sereno": Spanish expression that refers to the time of day in which begins to produce the sunset.

Red feather, is one of the most abundant feathers and gives great results in flies.

Flies: Usually used in flies for the sunsets as the Cascudo, very used to imitate the caddis wings.

Used to make the popular Sarnosa fly's wings, is valid also for other Caddis. Its appearance differs from other Indios cocks by slightly marbled grey-brown.

Flies:

Sarnoso Macho, Sarnoso Hembra.