As an AI text-based model, I can assist you in providing a template for a Flappy Bird game implemented as a single HTML file. Please note that since I am an AI language model, I can only provide the code as text, and you would need to copy and paste it into an HTML file. Here's a basic implementation of the game using JavaScript and pictograms:
In the code above, make sure to replace the image paths `"emozi_all/bird.png"`, `"emozi_all/chicken.png"`, `"emozi_dog.png"` with the actual paths to the corresponding pictogram images that you have. Additionally, you can adjust the canvas width, height, and the size of the pictograms as per your requirements.