sentences:  Adaptations for crevice-gleaning are similar to that of bark-gleaning.Just as the Bewick's wren, as mentioned in the preceding paragraph, has a long bill suited for poking around in the small places of woods and gardens, another North American wren, the canyon wren, has an even longer bill, which allows it to probe crevices in rocky cliffs.It also has skeletal adaptations to aid it in reaching deep into small spaces.