Ask for a photo, the exact place and time, and an unprompted description. Then check how it fits with what you already know.
What separates a good report from a weak one
You can judge a lost pet sighting by asking for four things: a photo or video, the exact place and time, which way the animal was heading, and a description given without any hints from you. A good report has details you did not provide and fits with where your pet could have reached. A weak one is vague or only repeats what your poster says. Most people who call are honest, but they may have seen a different animal. Your job is to thank them, get the details and work out how much to rely on the report.
Ask open questions
Do not lead the caller. If you ask whether it had a white chest, they are likely to say yes. Ask instead: What did it look like? What color? How big? Was it wearing anything? Was it limping? If they mention something not on your poster, that is a strong sign. Keep the detail you held back to yourself, and see if they raise it on their own. If not, it does not mean the report is false, since few people notice small details at a distance. Write down their exact words.
Check the time and place
Ask for a specific place, such as a landmark or a cross street, and go there to see what they could have seen. Ask when it happened, to the hour if possible. People can mix up days, so ask what they were doing at the time. Then see if it fits: could your pet have reached that spot? Was it dark? Was the person in a car? A dog seen at 60 miles an hour from a highway is a very brief glimpse. Ask how long they saw the animal and how close it was.
Ask for a photo, and look carefully
A photo or clip is the most reliable evidence you can get. Doorbell and dash cameras often catch more than the person saw. Zoom in on the ears, tail, coat pattern, leg shape and gait. Compare with your own photos of the same angle, and ask someone else who knows your pet for a second opinion. You may want so badly for it to be your pet that you see a match. Lost pet scammers may also use fake or AI-generated images. If a stranger sends an image and asks for money, treat that as a warning, not a sighting.
Watch for repeated reports
One good sighting is a lead. Two independent reports of the same animal, in the same area, around the same time, are far stronger. Be careful that two people are not simply repeating a rumor they read in a Facebook comment. Ask each one if they saw it with their own eyes, and if they know of others who did. If you get a cluster of sightings at dawn in one place, that is the time and place to put your energy, even if each single report seems only moderately convincing.
Common wrong matches
Many animals resemble each other at a distance. A coyote can look like a lean shepherd mix. A fox can be mistaken for a small reddish dog. Other people’s outdoor cats may look like yours, especially tabbies and black cats. Roaming neighborhood dogs often pass through. Check whether there is a local animal that matches. Ask your neighbors, and look at local lost pet groups, which could show that the same animal has been reported by another owner. If you can rule it out, you can stop wasting time on it.
Respond without chasing
When a report sounds right, go quietly. Do not bring a crowd, and do not call out as you get close. Go to the place, look for signs and ask nearby people. Leave a flyer and speak with whoever saw the animal. If your pet is shy, put a camera or a food station nearby rather than walking through the area repeatedly. If it is friendly, walk slowly and speak in your usual voice. Thank the caller either way, tell them what you did and ask them to call again.
Treat every caller well
Even a wrong report is useful. It shows that your poster is working and that a person cares enough to call. Say thank you and take their number. If you are short with someone who was wrong, they may not call next time, when they might be right. Keep all your notes on the map with a grade for how reliable you think they are. And do not pay for a sighting, or send money or codes on the strength of one. Real witnesses can tell you what they saw for free.