Houston Chronicle

Songbirds congregati­ng at San Bernard National Wildlife Refuge.

- By Gary Clark

Don’t expect to see bobcats along the Bobcat Woods Trail at the San Bernard National Wildlife Refuge, but do expect to see migratory songbirds arriving from winter homes in Latin America.

Songbirds headed to North America make a seemingly miraculous, 600-mile flight across the Gulf of Mexico from take-off spots on Mexico’s Yucatán Peninsula. They first arrive in coastal preserves, such as the San Bernard Refuge.

Bobcat Woods provides the songbirds a respite from their exhausting flight. A dense forest with a bushy understory surrounds Cocklebur Slough and serves up a bounty of insects to fortify the little birds.

An ADA-accessible wooden boardwalk cuts about a half-mile through the woods, with benches and platforms overlookin­g the placid slough. It then continues another half-mile around the west side of the woods facing Wolfweed Wetlands.

Stroll slowly on the boardwalk to keep alert for migratory songbirds, such as black-and-white warblers. They scurry around tree limbs and trunks looking for insects. Watch the forest floor for a brownish-colored ovenbird kicking up leaf litter to stir up insects.

The slough’s muddy edges are heaven-sent for birds such as northern and Louisiana waterthrus­hes. They pluck up invertebra­tes, such as beetles and water fleas, while bobbing the back half of their bodies in unison with their tails.

A yellow-billed cuckoo could be sneaking through tree foliage while plucking caterpilla­rs off leaves and twigs. A scarlet tanager with a crimson body and black wings could be conspicuou­sly making quick aerial sallies to capture flying insects.

Coastal woodlots offer no guarantee to see bunches of migratory birds, but it’s likely you’ll see birds and more at Bobcat Woods.

The boardwalk features multiple educationa­l panels about plants and critters. Study the panel showing a southern leopard frog, bullfrog and green tree frog. Then look closely at the palmetto leaves springing up in the understory to find a green tree frog atop one of the broad green leaves.

Inchworms moving along the edges of the boardwalk are caterpilla­rs that will eventually metamorpho­se into geometer moths. They pull their rear legs underneath to connect with their front legs, arch their midsection and reach, or “inch,” the front legs forward to move along in a looping motion.

 ?? Photos by Kathy Adams Clark / Contributo­r ?? Watch for black-and-white warblers in the trees at Bobcat Woods at the San Bernard National Wildlife Refuge this spring.
Photos by Kathy Adams Clark / Contributo­r Watch for black-and-white warblers in the trees at Bobcat Woods at the San Bernard National Wildlife Refuge this spring.
 ??  ?? Migratory and resident birds can be seen along the boardwalk and trail through Bobcat Woods.
Migratory and resident birds can be seen along the boardwalk and trail through Bobcat Woods.
 ??  ?? The muddy areas are a great place to look for northern waterthrus­hes at the San Bernard National Wildlife Refuge.
The muddy areas are a great place to look for northern waterthrus­hes at the San Bernard National Wildlife Refuge.

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