Egrets
Yellow ring with a 3 alpha-numeric code and a metal ring.
note 1 : the colour ring is yellow with a 3 alpha-numeric code of three letters and numbers (usually two letters and one number, but it’s also possible three letters or two numbers and one letter, always the first character a 3 or a 4).
note 2 : all the individuals were ringed in a wintering area of the species around the city of Mataró (El Maresme-Catalunya-NE Spain) between 2006-2009. [2006: 15 ; 2007: 2 ; 2008: 34 ; 2009: 7].
note 3 : since 2008 onwards, the metal and colour ring was placed on the tibia; before this year it was placed on the tarsus.
note 4 : The objective of the work is to know the origin of the suburban colony that winters inside the city of Mataró and that feeds around this point.