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Field Journal

Purple Martins

Field notes on the migration, behavior, and seasonal rhythms of one of Central Texas's most captivating swallows.

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A flock of Purple Martins at sunset, photographed by Susanne Harm
Purple Martin close-up photograph by Susanne Harm

Migration

Purple Martin Migration: A Central Texas Guide

Learn when Purple Martins arrive and leave Central Texas, what to look for at each stage, and how to follow their journey.

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Purple Martin in flight

Field Identification

Purple Martin vs Barn Swallow: How to Tell Them Apart

Learn the fastest ways to tell Purple Martins and Barn Swallows apart, from shape and flight to nests, calls, and seasonal habits.

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Purple Martin close-up photograph by Susanne Harm

Nesting & Colony Care

Purple Martin Nesting: A Central Texas Guide

Learn what Purple Martin nesting looks like through the season, how to observe a colony responsibly, and when to give the birds space.

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Purple Martin photograph by Susanne Harm

Feeding & Behavior

What Do Purple Martins Eat? A Clear Field Guide

Learn what Purple Martins eat, why mosquitoes are not their main food, and how weather changes what you see in the sky.

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Purple Martin photograph by Susanne Harm

Colony Care

How to Start a Purple Martin Colony

A practical guide to choosing a colony site, preparing housing, and watching Purple Martins responsibly in Central Texas.

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Purple Martins flying over Central Texas at dusk, photographed by Susanne Harm

Calls & Behavior

Purple Martin Calls: A Field Guide to Their Sounds

Learn which Purple Martin calls you may hear around a colony, what the sounds can mean, and how to listen without disturbing the birds.

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