Answer:
I am seen in the water. If seen in the sky I am in the rainbow a jay's feather and lapis lazuli.
I always run but never walk often murmur but never talk have a bed but never sleep has a mouth but never eat.
Sing me to a baby about to go to sleep.
In all the world none can compare I am a tiny weaver my deadly cloth so silky and fair.
I have feet on my head
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?