Magnificence of the Creator in birds
Nahj al-Balāgha|Volume 1|Book 1|Chapter 165
فَإنْ شَبَّهْتَهُ بِمَا أَنْبَتَتِ الاْرْضُ قُلْتَ: جَنِىٌّ جُنِىَ مِنْ زَهْرَةِ كُلِّ رَبِيع، وَإنْ ضَاهَيْتَهُ بِالْملابِسِ فَهُوَ كَمَوْشِىِّ الْحُلَلِ أَوْ كَمُونِقِ عَصْبِ الَيمَنِ، وَإنْ شَاكَلْتَهُ بِالْحُلِيِّ فَهُوَ كَفُصُوص ذَاتِ أَلْوَان، قَدْ نُطِّقَتْ بِاللُّجَيْنِ الْمُكَلَّلِ.
If you likened them to anything growing on land, you would say that it is a bouquet of flowers collected during every spring. If you likened them to cloths, they would be like printed apparels or amazing variegated cloths of Yemen. If you likened them to ornaments then they would be like gems of different colours with studded silver.