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Table 1 Characteristics of trees and cavities used by parrots

From: Exotic parrots breeding in urban tree cavities: nesting requirements, geographic distribution, and potential impacts on cavity nesting birds in southeast Florida

Nest tree Location Habitat Tree species Original excavator Tree height (m) DBH (cm) Decay class Nest height (m) Nest diameter (cm) Nest hole enlarged? Internal depth (cm) Internal diameter (cm) Parrot species observed
1 Palmetto Bay Freshwater slough Royal Palm PIWO 13.5 40 2 12.5 14 No Unknown BYMA
2 Coral Gables Botanical garden Royal Palm PIWO 13 31 1 8 15 No 220 32 OWPA
3 Coral Gables Botanical garden Royal Palm PIWO 7 30 6 5 11 No 105 26 RMPA
4 Miami Urban Royal Palm RBWO 9.5 46 3 9 10 Yes 275 35 BCPA
5 Miami Urban Royal Palm RBWO 24 55 1 11 8 No 25 38 BCPA
6 South Miami Suburban Royal Palm RBWO 9 38 2 8 12 Yes 185 40 OWPA
7 South Miami Suburban Royal Palm RBWO 19 39 1 18 10 Yes 165 37 CFMA
8 Miami Beach Park Sabal Palm RBWO 10 23 1 7.7 7 No 45 19 BCPA
9 Virginia Gardens Suburban Royal Palm PIWO 15 39 3 13 10 No 700 35 SFPA, NAPA
10 North Miami Beach Urban Royal Palm RBWO 18 39 3 15 12 Yes 85 38 OWPA
11 North Miami Beach Urban Royal Palm RBWO 16 33 4 15.5 6 No Unknown BCPA
12 Coral Gables Urban Royal Palm RBWO 10 36 2 8 7 No 115 38 RMPA
13 Bradenton Suburban Utility Pole PIWO 16 27 N/A 13 10.5 No Unknown NAPA
14 Coral Gables Park Utility Pole PIWO 7 27 N/A 7 20 Yes Unknown OWPA
15 Coral Gables Botanical garden Royal Palm PIWO 15 34 3 12 12 No 95 28 RMPA
16 South Miami Park Royal Palm RBWO 15 40 2 10 10 Yes 125 33 CFMA
17 North Miami Beach Urban Royal Palm RBWO 17.5 41 3 17 8 Yes Unknown RMPA
18 Pinecrest Suburban Royal Palm RBWO 8.9 40 2 8.8 11 Yes 140 32 OWPA
19 Ft. Lauderdale Hammock Royal Palm PIWO 12.7 39 2 12.2 9 No 130 33 NAPA
20 Olympia Heights Suburban Royal Palm RBWO 10.8 42 5 9.1 7 No 320 34 RMPA
21 South Miami Suburban Royal Palm RBWO 10.9 41 2 10.8 8 No 90 45 RMPA
22 Coral Terrace Suburban Royal Palm RBWO 6.3 34 3 3.4 8 No 65 32 RMPA
23 North Miami Urban Royal Palm RBWO 6.2 33 3 5.8 10.5 Yes 275 37 OWPA
  1. Characteristics of 23 trees and cavities with observations of parrot activity during our study period. Trees are numbered in the order they were first recorded
  2. RBWO Red-bellied Woodpecker, PIWO Pileated Woodpecker, BYMA Blue-and-yellow Macaw, OWPA Orange-winged Parrot, RMPA Red-masked Parakeet, BCPA blue-crowned Parakeet, CFMA Chestnut-fronted Macaw, SFPA Scarlet-fronted Parakeet, NAPA Nanday Parakeet