Try using a scrubbing brush and warm water. If that doesn't work, you could get one of those pressure washers or a strong powered hose pipe. They may just wash off through the rain water though.
The best type of concrete sealer for a bird bath to ensure durability and longevity is a penetrating sealer. This type of sealer penetrates into the concrete to provide long-lasting protection against water, stains, and weathering. It helps to prevent cracking, chipping, and fading, making your bird bath more durable and resistant to the elements.
because it looks like bird poo
The stool, urates and urine
Yes, bird is a noun, a singular, common, concrete noun.
bugs, rock, bird, person, rain, bird dropping
how the hell should i know that
I believe it was a crow.
The only concrete word for the adjective early is early bird (person or actual bird). All other synonym nouns are abstract nouns.
Concrete bird baths can be found at Home Improvement stores, such as Home Depot or Lowe's. Walmart has them for sale in the garden center. If the stores do not have what you like, they can order what you want.
The Bird-dropping spider (Celaenia excavata (C. kinbergii )) is an unusual spider, the appearance of which mimics bird droppings. This is both effective camouflage, and an effective means of lying in wait for prey.To see more information, click on the related link below.
shoot it
The noun 'birds' is the plural form for the singular 'bird', a common, concrete noun; a word for a thing.