Song Thrush eating fallen petals of Bloody Crane’s-bill

On 1st July 2019, in my garden in Somerset, I saw a male Song Thrush Turdus philomelos investigating some fallen flower petals beneath a clump of Bloody Crane’s-bill Geranium sanguineum. The thrush began to pick up individual petals and, after it had accumulated four or five in its bill, the petals were swallowed. This process was repeated and, after eating perhaps 15–16 petals,