Your best audiences are often hiding in plain sight - spread across different campaigns, named differently, easy to miss. The Top Audiences report pulls them all into one place, so you can see at a glance which audiences are actually driving results and which ones are quietly wasting spend.

Follow the steps below to create a report:

Click Create report to open the report configurator. You'll set five things:

Pick the ad account whose audiences you want to analyze - up to 5 accounts at once. Need to narrow things down first? Filter campaigns, ad sets, or ads by name, status, or delivery.

Choose up to ten metrics to evaluate your audiences by. If you find yourself reusing the same combination, save it as a custom set of metrics so you don't have to rebuild it every time.

Pick a timeframe from the dropdown, or turn on Custom dates for a specific range.
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Want to see how things are trending? Turn on Compare periods to stack your chosen window against a prior one with a single click.

Heads up: with Compare periods, the two windows can overlap - for example, "Last 30 days" numbers are already included in "Last 90 days," so don't read them as fully independent.

Once your report is built, the gear icon in the top-right corner lets you sort by timeframe or by percent change - handy for spotting which audiences are trending up or down, not just where they stand today.

This setting affects the data displayed. It's the number of days between when a person viewed or clicked your ad and subsequently took an action.

Use ad set attribution window toggle is enabled as the default option.
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Alternatively, you can configure the attribution window to the following options:

For more details on the attribution window setting, check out this article.
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The same audience often gets reused across several campaigns. To stop the report from treating near-identical audiences as separate entries, tell it which parameters to ignore - that way, minor, inconsequential differences won't fragment your data.

When you're ready, click Discover audiences. Larger accounts may take a few minutes to process - feel free to step away and let it run in the background.

Once it's built, you'll see every audience listed by its ad set name. Where the same audience shows up in multiple ad sets or campaigns, Bïrch combines their data into a single row and notes how many ad sets share it, right below the name - so you're comparing true audience performance, not fragments of it.

From there:

The result: a clear view of your genuinely best- and worst-performing audiences, side by side.

Curious why one audience is outperforming another? Check the boxes next to both, then click Compare. This opens a side-by-side view of exactly how each audience is built - often the fastest way to spot the targeting difference that's driving the performance gap.

Hit Share at the top of the report to send it on:

Turn on Share report with the team and it becomes visible to every teammate, who can open, edit, duplicate, or delete it from their end. Shared reports keep their filters intact.
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Presenting to a client? White-label the report to swap the Bïrch logo for your own.

Need the raw numbers? Open your report and click CSV in the top-right corner - download the file directly, or copy a shareable link to it.

This is especially useful if you're piping data into your own workflows: connect the CSV to Zapier, for instance, to auto-generate charts or push a summary straight to your team's Slack.

Note: only the report owner can export to CSV.

Stuck on anything above? Reach us anytime in Intercom chat or at support@bir.ch - we're happy to help