Petronia petronia
English: Rock Sparrow.
German: Steinsperling.
French: Moineau soulcie.
Order: Passeriformes.
Family: Passeridae.
15-17 cm.
Among the family of different sparrow species, there are many similarities between them, which sometimes makes identification difficult. In the case of the Rock Sparrow, adult specimens can be identified by the yellow spot on their throat. One of the most noticeable differences from another sparrow is the rectrices with visible white spots on the tip of the feather.

In terms of size, it is a sparrow with a significantly larger wingspan than the House Sparrow, Eurasian Tree Sparrow, and Spanish Sparrow.
Sexing through plumage is not possible in this species. ie.
It is possible to recognize 2 different ages:

Juvenile specimen: It has a very similar appearance to the adult, but with new plumage, first generation. It can also be differentiated by the lack of the yellow spot on the throat that the adult has.

Adult specimen: During the summer, it has a worn plumage. It stands out for its yellow spot on the upper part of the chest.
Rock Sparrows undergo complete post-nuptial and post-juvenile molts. These processes usually end in November. After these processes, it is not possible to date the age using the plumage design.
Primaries: 10 per wing.
Secundaries: 9 per wing.
Rectrices: 12.


Adult specimen


1.- Left wing primaries. 2.- Primaries. 3.- Details of P10. 4.- Details of the outer vane of the primaries (P10-P6). 5.- Details of the tips of the primaries. 6.- Secondaries and tertials. 7.- Details of the outer vane of the secondaries. 8.- Secondaries and tertials. 9.- Detail of the outer vane of the secondaries. 10.- Details of the tips of the secondaries and tertials. 11.- Details of the tertials. 12.- Tertials. 13.- Primaries, secondaries, and tertials. 14.- Primaries, secondaries, and tertials. 15.- Primaries, secondaries, tertials. Primary coverts and greater coverts. 16.- Primaries, secondaries, tertials. Primary coverts and secondary coverts (G, M and L). Alulas. 17.- Details of the primary coverts. 18.- Details of the greater coverts. 19.- Infra-coverts of the left wing. 20.- Rectrices. 21.- Rectrices. 22.- Rectrices + uppertail coverts. 23.- Details of the tips of the rectrices. 24.- Details of the uppertail coverts. 25.- Details of the feathers of the upper part of the chest (throat). 26.- Feathers of the back.

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