The Aves Spinus spinus, commonly known as the Eurasian Siskin or simply Siskin, is a small passerine bird in the finch family, Fringillidae. This active and lively bird is easily recognizable by its distinctive plumage and vocalizations.

Identification:

• Size: The Eurasian Siskin is a small bird, measuring approximately 12 to 14 centimeters in length.
• Coloration: Males typically have a bright yellow-green plumage with a striking black crown and bib. Females and juveniles are more subdued in coloration, primarily gray-brown with streaks and hints of yellow.
• Wings and Tail: Both genders have conspicuous yellow wing bars and a yellow stripe on the tail, which are visible in flight.

Habitat:

• Siskins are commonly found in coniferous and mixed woodlands. However, they can also be spotted in parks and gardens, especially during winter when they may join mixed-species flocks.
• In the Comunidad Valenciana, Siskins are often seen during their winter migration and can be observed feeding on seeds of alder and birch trees.

Behavior:

• Siskins are social birds, often found in small to large flocks, particularly outside of the breeding season.
• They have a melodious song and various calls, which include a distinctive 'tswee' sound.

Diet:

• The Eurasian Siskin primarily feeds on seeds, with a preference for conifer seeds during the breeding season. They also consume small insects, especially in summer.
• In the Comunidad Valenciana, they can be observed feeding in tree canopies or visiting bird feeders for sunflower seeds and other readily available food sources.

Overall, the Eurasian Siskin is a charming and lively bird that adds color and song to the natural spaces it inhabits, making it a delightful presence in the Comunidad Valenciana's natural landscape.