Black Triangle UFO (2)

After 15 Sept 2009, It appeared again the next day, at 3:35:50 PM 16 Sept 2009. This pattern is similar to year of 2007, an invisible black triangular ufo also showed itself on top of my garden for two days, 6 June & 8 June 2007. Size about 60cm to 1.3 metre?
Here are the pictures.

                                        click the image for large picture.