Think Spring !

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Across
  1. 5. Moving with great speed.
  2. 7. Male duck with black tail coverts.
  3. 9. Some proclaim the harbinger of spring.
  4. 13. He's under the bridge and saying his name.
  5. 15. The smallest empidonax.
  6. 18. Swan from the north.
  7. 20. Peenter.
  8. 21. Hooded or Common.
  9. 22. A duck with a blue bill and cocked up tail.
  10. 23. A singer who doesn't know the words.
  11. 25. Opposite of white duck.
  12. 27. One who trumpets.
  13. 28. A bird with a feline voice.
  14. 29. Buteo with a thin, shrill, whistle.
  15. 31. Higher than a bishop.
  16. 32. To shoot from a concealed position.
  17. 34. The muscular organ that is part of the digestive system.
  18. 35. A blinking candle.
Down
  1. 1. Of the Strigidae family
  2. 2. Grapejelly eater.
  3. 3. Is it greater or lesser ?
  4. 4. the iridescent throat patch on Hummingbirds
  5. 6. Our most numerous duck.
  6. 8. Songster repeating phrases two times.
  7. 10. Of the Teal variety.
  8. 11. Squeeky door blackbird.
  9. 12. The first warbler to arrive in Spring.
  10. 14. Who did that line of holes in my tree ?
  11. 16. Territory where males gather to display.
  12. 17. Helpless and dependant at hatcheng.
  13. 19. Eastern or western ?
  14. 24. Declining Swallow.
  15. 26. Symbol of the northwoods.
  16. 30. The most colorful male of our waterfowl.
  17. 33. Bovine blackbird.