This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: cropped on four sides centering on the birds. The original can be viewed here: Ptyonoprogne rupestris flock.jpg: . Modifications made by Snowmanradio.
Io, titular del derecto de autor sur iste obra, declara de publicar lo sub le sequente licentia:
de condivider – de copiar, distribuer e transmitter le obra
de remixar – de adaptar le obra
Sub le sequente conditiones:
attribution – Tu debe dar information appropriate sur le autor, fornir un ligamine al licentia, e indicar si modificationes ha essite apportate. Tu pote facer lo de qualcunque maniera rationabile, ma non in alcun modo que suggere que le licentiator approba te o tu uso del obra.
condivider equalmente – Si tu altera, transforma o disveloppa le material, tu debe distribuer tu contributiones sub un licentia identic o compatibile con le original.
{{Information |Description={{en|1=Crag Martin ''Ptyonoprogne rupestris'' (syn. ''Hirundo rupestris'') on building roof in Alcobaça, Portugal.}} |Source=*File:Ptyonoprogne_rupestris_flock.jpg |Date=2010-04-14 10:25 (UTC) |Author=*[[:File:Ptyonoprog