2016年由雅各·溫瑟爾(Jakob Vinther)帶領的研究分析藏於森根堡自然博物館的鸚鵡嘴龍未定種化石(編號SMF R 4970),透過化石上保留着的黑色素體發現鸚鵡嘴龍身上可能覆有具偽裝功能的保護色。研究認為這隻鸚鵡嘴龍的身體主要呈棕色,但背部、胸部體色較深,腹部下方則較淺,可能是因為鸚鵡嘴龍多棲息在茂密的森林中,體色具有和周圍環境融為一體的作用。此外他們還發現這隻鸚鵡嘴龍在腿部至尾巴基部有皮膜連結,但功能尚不清楚;以及相對大的眼睛,顯示其視力可能頗佳,有助於覓食或避敵[13][14][15]。
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