Ash-Shaykh al-Uthaymeen was asked the following question:
What is the ruling on burying a bird and the likes?
Burying them as a form of worship is an innovation, However, if he buries them such that it does not harm the people, then there is no harm
[Kanz uth-Thameen Fi Su’alaat Ibn Saneed no. 770 pg. 176]
Faisal Ibn Abdul Qaadir Ibn Hassan