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By Kelly B. Bryan. El Paso Davis Mountains Resort Miller Ranch Terlingua Ranch Fort Davis Alpine Davis Mountains Preserve.

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Presentation on theme: "By Kelly B. Bryan. El Paso Davis Mountains Resort Miller Ranch Terlingua Ranch Fort Davis Alpine Davis Mountains Preserve."— Presentation transcript:

1 by Kelly B. Bryan

2 El Paso Davis Mountains Resort Miller Ranch Terlingua Ranch Fort Davis Alpine Davis Mountains Preserve

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4

5 14 Species9283 Individuals Broad-billed Hummingbird10 White-eared Hummingbird16 Violet-crowned Hummingbird1 Blue-throated Hummingbird3 Magnificent Hummingbird176 Lucifer Hummingbird378 Ruby-throated Hummingbird290 Black-chinned Hummingbird3491 Anna’s Hummingbird226 Costa’s Hummingbird2 Calliope Hummingbird346 Broad-tailed Hummingbird1973 Rufous Hummingbird2288 Allen’s Hummingbird82

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7 Male Lucifer Hummingbird

8 Female Lucifer Hummingbird

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10 Male Lucifer Hummingbird

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12 Male Lucifer Hummingbirds

13 HY M Lucifer Hummingbirds

14 HY M Lucifer Hummingbird

15 HY F Lucifer Hummingbird

16 Lucifer Hummingbird Display

17 LUHU with nest material

18 Looking for LUHU nests

19 LUHU nest in cane cholla

20 MonthMarAprMayJunJulAugSepOct Captures Recaptures Totals LUHU Captures and Recaptures by Month

21 Recaptured Individuals and Frequency of Recapture  Only one time – 72 (27-1 yr. later; 2-2 yrs. later)  Two times – 27 (13-1 yr. later; 5-2 yrs. later)  Three times – 11 (4-1 yr. later; 2-2 yrs. later)  Four times – 8 (3-1 yr. later; 1-2 yrs. later)  Five times – 7 (3-1 yr. later; 2-2 yrs.; 1-3 yrs.)  Six times – 5 (3-1 yr. later; 2-2 yrs. later)  Seven times – 4 (3-1 yr. later; 1-3 yrs. later)  Eight times – 4 (3-1 yr. later; 1-2 yrs. later)  Nine times – 0  Ten times – 1 (2 yrs. later)  Total Individuals represented – 141 (37.3%)

22 Chronolog of the Most Frequently Recaptured Individual H47936 banded June 29, 2009 – HY M Recaptured:  March 24, 2010  June 3, 2010  June 23, 2010  May 12, 2011  June 10, 2011  July 9, 2011  July 24, 2011  August 8, 2011  September 5, 2011  September 23, 2011

23 Chronolog of the two Oldest Recaptured Individuals R98947 and R98948 both banded on August 17, 2008 – both AHY F R98947R98948 July 18, 2009September 17, 2008 June 23, 2010September 4, 2009 August 10, 2010June 23, 2010 May 12, 2011June 10, 2011 July 24, 2011 August 8, 2011 Age – 4 yearsAge – 4+ years

24 Age/sex Ratios of Banded/recaptured Individuals  AHY M – 142/171  AHY F – 133/123  HY M – 75/29  HY F – 28/4

25 Comparison of HY LUHUs captured by year Totals HY Birds % of Total Birds

26 Morphometrics by Age and Sex AGE/SEXNWING CORDTAILCULMEN AHY M ( )31.2 (29-34)20.96 ( ) AHY F ( )25.6 ( )21.95 ( ) HY M ( )25.4 ( )20.93 ( ) HY F ( )25.8 (24-28)21.60 ( )

27 Comparison of LUHU/BCHU captures at CMO Totals LUHU BCHU

28 Comparison of LUHU captures DM vs. TR Totals Davis Mountains Terlingua Ranch

29 Adult Female LUHU with Gorget Feathers; this individual was also gravid

30 HY F LUHU banded October 19, 2008; recaptured September 4, 2009; bill measurement 17.38mm-20.61mm

31 What have we learned, so far?  Lucifer Hummingbirds are more common than anticipated  Recaptures are numerous indicating a strong site fidelity; however, some individuals are noticeably trap shy affecting recapture rates  LUHU abundance peaks in August which coincides with the peak of migration for most other western US species  Some individuals move between banding sites  Based on the recapture of two banded female birds from August 17, 2008, their ages are now 4+ years old  Typical of other small NA hummingbirds, LUHU females on the average have larger measurements than most males  ID of HY M individuals can be determined by presence of gorget feathers, the wing cord length and/or the length or R1  Despite being a desert adapted species, LUHUs concentrate at feeder station during times of extreme drought and/or invade higher elevation habitats searching for new food resources  Male displays are spectacular  Nests are difficult to access and find  The Project is going well!

32 Sunrise in Lucifer Land


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