森林医生—灰头绿啄木鸟。蔡庆江 <h3>灰头绿啄木鸟回巢。</h3> <h3>观察……</h3> <h3>探头</h3> <h3>出洞……</h3> <h3>准备……</h3> <h3>飞翔……</h3> <h3>姿态优美。</h3> <h3>离开鸟巢。</h3> <h3>奋力向前。</h3> <h3>加速……</h3> <h3>冲击……</h3> <h3>展翅……</h3> <h3>翱翔……</h3>