Not a reverso 12

I took yesterday off from writing to enjoy Easter with my family. I hope you all enjoyed your Easter as well.

Here is the third installment of the cat-bird saga. The first two installments were posted last week.



Above the door there is a pane.
Below the pane there is a ledge.
On the ledge a bird is perched,
Outside the door of our house.
Inside the door of our house,
Two cats beside the windows sit.