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Purple Martins over Houston

Activities for All Ages

Purple Martin Watch Parties

Purple Martin Watch Parties

Purple Martin Watch Parties

Upcoming Party: Saturday, August 15
We'll meet at 7:45 pm for the watch parties.

Location of August 15 Watch Party: (tentative)
Another Broken Egg Cafe parking lot (I-10 & Westgreen)
20950 Katy Fwy, Katy, TX 77449
Google Map of Location

Tips: Several restaurants share parking lots at this location, and Saturday is a popular night to dine out, so allow yourself a little extra time to find parking. Plenty of parking is available, but you may need to walk a bit to get to our meeting spot. Remember to bring a lawn chair if you'd like to sit down to enjoy the spectacle.


Graceful in flight, the Purple Martin, the largest of North America’s swallows, is one of Houston’s most popular birds. In late summer, after leaving the nesting colony with fledglings in tow, Purple Martins gather daily in large flocks to feed, socialize, and roost before migrating.  

The Houston metro area is lucky to have Purple Martin roosts, with some areas witnessing up to 500,000 birds. From July to September, Houston's Purple Martins spend most of the day feeding on flying insects to build energy for their long journey across the Gulf of Mexico. At dusk, large flocks cover the sky in a dark cloud as they fly into the trees to roost, this spectacle lasting about 45 minutes.  

At Houston Audubon’s Purple Martin Watch Parties, sponsored this year by CenterPoint Energy, the community is invited to gather and witness the wonder of Purple Martin flying patterns as they come together to roost every night. During the parties, Houston Audubon staff and volunteers are on hand to educate attendees about Purple Martins, their amazing journey, and how people can help protect these birds.  These free, family-friendly events are fun for all ages.  

Houston Audubon’s Purple Martin Watch Parties occur at dusk in July and August. Big roosts have been found in Stafford, Willowbrook, Katy, Pearland, and other sites. Because nature is unpredictable, locations are subject to change, so please check our website or social media for up-to-date news. 


About Purple Martins

Peak numbers for Purple Martins occur in July and August when Purple Martins form large flocks and roost together in great numbers in preparation to migration. Some roosts may have thousands of birds. When the birds arrive to roost in the evening, it can be an amazing spectacle with the sky literally black with martins! If you know of a large roost, please contact us at birds@houstonaudubon.org. We have prepared an informational flyer about communal roosts, suitable for display. Join us in helping to protect Purple Martins!

Radar Sightings

Purple Martin flight patterns are sometimes visible on weather surveillance radar. The patterns can resemble rings which are particularly dense as they disperse to forage in the early morning.

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