Possible Clues:

• Insect
• Daddy-long-legs
• Daddy-longlegs
• Leggy bird, alert, finding similar prey?
• Bug female trapped in planned larceny
• Sounds like Derek is on a flutter with long-legged flighty type
• Insect makes bird take to the air
• The daddy-long-legs
• Mosquitolike nonbiter
• Insect gets bird to escape