تَأْوِي لَهُ قُلُصُ النَّعَامِ كَمَا أَوَتْ حِزَقٌ يَمَانِيَةٌ لِأَعْجَمَ طِمْطِمِ
The young ostriches gather toward him as groups of Yemenis might gather around a person whose speech is hard for them to understand.
Quluṣ al-naʿām refers here to young ostriches drawing toward the larger bird. Taʾwī conveys coming together or seeking the presence of another. The image abruptly turns into a second comparison: groups of Yemenis gathering around someone whose speech they cannot readily decipher.
Aʿjam ṭimṭim evokes difficult or foreign-sounding speech within an old cultural comparison. It is a historical poetic idiom, not a scholarly evaluation of any modern language or people.