Lost mommy cat with three kittens at home!!

These are the posters that I spent the morning posting all around the neighbourhood:"Last night this mommy cat clawed her way through a second floor screen window and jumped. She is a foster from the Humane Society and so is NOT familiar with the area and how to find her way home. She is grey and black with a white tummy. She is very skinny. There are three kittens who are four weeks old waiting at home for their mom and her milk. Please call 613-555-1212 or come to 123 Evergreen Terrace if you see her or if you catch her. She is very friendly but is likely scared. "
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The window was open about 2 inches. She clawed the window sill on her way out pretty nicely. My guess is that it took some effort to get out the window. I went all over the neighbourhood putting up posters and talking to people. There was a big garage sale going on and I spoke with all of the vendors. Luckily, one of them saw her (jumping over the 5 foot chain link fence like it wasn't there) and trapped her in the garage. One momma kitty returned to her babies. The window is now completely shut!