Lost dog in a big city: apartments, subways, and building staff
Check your own building first, then ask doormen, supers and garage staff for camera footage. Stay off subway tracks and report the dog to station staff instead.
Start inside your own building
If your dog got out of an apartment, search the building before the street. Dogs that slip out of a door may be on another floor. Check every stairwell landing from the roof door to the basement, plus the laundry room, boiler room, trash room, bike room, courtyard and any open service door. Ask someone to hold the lobby door shut. Then tell the doorman, super or security desk, and ask them to call you if the dog shows up. If you live in a walk-up, knock on every door on your stairs. Only when the building is clear should you go outside. Have one person stay at your apartment door in case the dog comes back up.
Ask for camera footage right away
City buildings have more cameras than most suburbs, but the footage can be erased, so ask today. Give an exact window: Could you check the lobby, loading dock and garage cameras from 6:10 to 6:40 tonight? Ask for the direction the dog went at each door. If the person at the desk cannot show you, ask who can, and ask them to save the clip in the meantime. Then walk the block in the direction the dog took and repeat this at each storefront, bank and parking garage. Staff can usually tell you who controls the camera, even if they cannot show it. One clip of the dog turning at a corner may save you a day of searching.
Who sees a dog in a city
The people most likely to have seen your dog are the ones paid to stand in one place. Doormen, porters, supers, garage attendants, security guards, street vendors, corner store owners, bus drivers, sanitation crews, delivery riders, dog walkers and construction site flaggers all see the same blocks every day. Give each one a flyer and say: If you see him, please do not grab him, just call me. Ask them to tell their coworkers on the other shift. Humane World for Animals says friendly dogs are more likely to turn up where people or other dogs gather, so go to dog runs, parks and busy storefronts. Frightened dogs are more likely to hide or run, so look at quiet places too.
Someone may have taken the dog home
In a crowded place, a friendly dog may not stay loose for long. A stranger may simply clip a belt to its collar and take it home, and may not know where to go next. So search online as well as on foot. Check your neighborhood Facebook group, Nextdoor, and shelter listings. In New York City, Animal Care Centers tells owners to check its online lost-pet tool, Petco Love Lost, Nextdoor, Pawboost, borough Facebook groups, 24PetConnect and Craigslist. Post in the groups for the next neighborhood over too, since a person walking your dog may live there. Ask vets within walking distance if anyone has brought in a found dog.
If the dog goes into the subway
Do not go after a dog onto the tracks. New York’s transit rules bar unauthorized people from tracks, roadbeds and tunnels, and the danger from trains and electrified rails is the real reason. Tell the station agent or any transit employee at once: the station, platform, direction and time. If the dog is on the tracks or you cannot find staff, call 911 and say so. Then ask which transit police or control office should have your report, and get a reference number. A pet is not normally on the system anyway: in New York animals must be in a container, and BART in the Bay Area requires a closed carrier. So staff are likely to remember a loose dog. Ask at the stations on either side.
City shelters and holds
Big cities often run several shelter sites, and a dog found in one area may be taken to any of them. Call them all, and ask if they share records. In New York City, Animal Care Centers says it must hold stray animals for three days, after which they may be adopted, transferred, sent to rescue or fostered, or in rare cases euthanized. It runs lost and found checks from 8 a.m. to 8 p.m. at every care center, and asks you to call (212) 788-4000 before you visit. Other cities differ, so ask yours. Also try the police precinct, the 311 line if your city has one, and any emergency vet near where your dog was seen.
Where to look outdoors
The Missing Animal Response Network says a dog in a crowded area is usually found closer to home than one in mountains or farmland. That is practitioner experience, but it is a good reason to work block by block. Look under stoops, scaffolding, parked cars and loading docks, and behind construction fencing. Check parks, cemeteries, waterfront paths, rail cuts and the back of big stores. Go early in the morning, when the streets are quieter and a shy dog is more likely to move. Use flyers at eye level on building doors with permission, and on community boards in laundromats and grocery stores. Print the flyer in the languages spoken on your blocks, if you can.
Sources
NYC Animal Care Centers, Lost and Found: nycacc.org/services/lost-and-found. New York transit rules, 21 NYCRR 1050.9: law.cornell.edu/regulations/new-york/21-NYCRR-1050.9. BART pets: bart.gov/guide/pets. Humane World for Animals: humaneworld.org/resources/how-find-lost-dog. Missing Animal Response Network: missinganimalresponse.com/lost-dog-behavior.