I saw one of the crows regurgitate this pellet this morning so I promptly went out to photograph it in situ on the platform feeder. The crow was still in the oak just over head. I went into the house for something like a coin to show scale and within the minute or so I was away the crow had flown back down and had completely scattered and shatter it's fresh pellet
Note the "diamonds" in all that rough. Actually they are small pieces of quartz gravel along with some other gravel.
