Related Clues:

• Baltimore NFLer
• All-points bulletin, e.g
• Like prairie dogs, notably
• Offer a heads-up
• N.F.L. player with a black helmet
• Keeping one's eyes peeled at crumbling alter
• Watch chain not originally belonging on watch?
• Poe's "ebony bird"
• Yukon's official bird
• Large blue-black bird
• Like a good lookout
• Wake-up call, say
• Not easy to fool
• Poe bird that quoth 'Nevermore'
• Fit for guard duty