Sparrows

species:

Eurasian Tree Sparrow

scientific name:

Passer montanus

notes:

Yellow ring with a black three alpha-numeric code : B-number-letter or B-letter-number (on left tarsus) and metal ring (on right tarsus).

note 1 : the study area is an Apples and Pears trees plantation in Navarra region (North of Spain).

note 2 : expected results are :
- are nest boxes used always by the same pairs ?
- are tree sparrows present all the year in the breeding area?
- what is the survival of the adult tree sparrows? And in the case of the chicks ?
- do sparrow chicks return to the same area where they were born?
- are the nest boxed occupied mainly by individuals born in nest boxes ?.
- how far the tree sparrow chicks reach in their dispersion ?

note :

email sighting submit:

colour-ring type:

Legring : one, coded.

colour-ring colour (of the c-ring):

Yellow [Y]

colour-ring code (of the c-ring):

Three alpha-numeric code (3 letters/numbers).

colour-ring position (of the c-ring):

Tarsus left.

countries where ringed:

Spain.

First letter/number (of the c-ring):