BIMONTHLY BULLETIN of the CAYMAN ISLANDS DEPARTMENT of ENVIRONMENT TERRESTRIAL RESOURCES UNIT
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BIMONTHLY BULLETIN of the CAYMAN ISLANDS DEPARTMENT of ENVIRONMENT TERRESTRIAL RESOURCES UNIT © Stuart Mailer The Big Bird Day May 9th 2015 marked the first Global Christine Rose-Smyth coordinated the Big Day for bird conservation. If you islands’ wide effort and entered most of have seen “The Big Year” movie, you the sightings from the Cayman Islands’ will have an idea of what it was like contributors who are listed below: when the worldwide birding community joined forces in a Cornell Lab of Christine Rose-Smyth Ornithology driven “Big Day” team, to Stuart Mailer record as many bird species as possible Isabelle Brown over one day only. Bonnie Scott-Edwards Gene Edwards As of 27th of May, almost 14,000 Zenitha Varghese birders, representing 136 countries, had Pranav Varghese entered their checklists and bird species Nina Banks at www.eBird.org, achieving a global Debra Vascik total of 6,072 species on a single day — Jim Vascik that is more than half of the world’s Geddes Hislop bird species! Cornell’s own “Team Danielle Bouchard Sapsucker” recorded 320 species on the Dave Brotherton Global Big Day as they explored tropical TRU (Terrestrial Research Unit) rainforests, wetlands, and highlands of their host country, Panama. Christine and Stuart covered Grand Cayman with a sterling effort starting at Birders in all three islands helped put 5.30 am in Barkers, through to North the Cayman Islands on the map with 67 Side and finishing in Savannah at 8.00 species (see list below). pm, logging a total of 57 species! Flicker Bulletin # 20- JUNE/ JULY 2015 The early-bird crew in Cayman Brac Unfortunately, the Turkey Vulture did birded from 4.00 am and TRU covered not show on the Global Big Day, Little Cayman, both teams recording however, overall it was a great effort Sister Island species. and so much fun catching up to Guadeloupe and other Caribbean All our endemic subspecies were seen Islands. and recorded, as were most of the breeding birds. The Vitelline Warbler Considering that this is the first-ever (our cover bird) was of special Global Big Day, the Cornell Lab of importance. Since it is a recognized full Ornithology witnessed an outpouring of species, endemic only to the Cayman worldwide citizen science power, with Islands and sparsely-populated Swan bird supporters coming together to Islands, it made a valuable contribution document and appreciate the diversity to the global total. It is possible that by of species sharing our planet. Their next year the Grand Cayman Bullfinch energy represents a call to action for will be a recognized full species too. The conservation and highlights the joy of standout record among migratory birding locally as well as globally. species was five Blackpoll Warblers, with two males in full summer plumage, Thanks to Christine Rose-Smyth for representing a high count not recorded organizing and coordinating the efforts in Grand Cayman since 1978 (P. Bradley, from the Cayman Islands! 2000). Based on the data entered into eBird by birders in Cayman to date, the team recorded a very creditable 87% of the total number of species recorded for the second week of May. A late Sanderling (Calidris alba) at Lobster Pot Dock on the Global Big Day, photo by Stuart Mailer. Flicker Bulletin # 20 - JUNE / JULY 2015 Cayman’s list of species recorded on the Global Big Day. 1 West Indian Whistling-Duck 35 Caribbean Dove 2 Pied-billed Grebe 36 White-winged Dove 3 White-tailed Tropicbird 37 Zenaida Dove 4 Magnificent Frigatebird 38 Mangrove Cuckoo 5 Brown Booby 39 Smooth-billed Ani 6 Red-footed Booby 40 Barn Owl 7 Great Blue Heron 41 Antillean Nighthawk 8 Great Egret 42 Belted Kingfisher 9 Snowy Egret 43 West Indian Woodpecker 10 Little Blue Heron 44 Northern Flicker 11 Tricolored Heron 45 Monk Parakeet 12 Reddish Egret 46 Cuban Parrot 13 Cattle Egret 47 Caribbean Elaenia 14 Green Heron 48 La Sagra's Flycatcher 15 Black-crowned Night-Heron 49 Gray Kingbird 16 Yellow-crowned Night-Heron 50 Loggerhead Kingbird 17 Glossy Ibis 51 Thick-billed Vireo 18 Osprey 52 Yucatan Vireo 19 Common Gallinule 53 Barn Swallow 20 American Coot 54 Red-legged Thrush 21 Black-necked Stilt 55 Northern Mockingbird 22 Black-bellied Plover 56 Northern Waterthrush 23 Semipalmated Plover 57 American Redstart 24 Spotted Sandpiper 58 Yellow Warbler 25 Greater Yellowlegs 59 Blackpoll Warbler 26 Willet 60 Vitelline Warbler 27 Ruddy Turnstone 61 Bananaquit 28 Sanderling 62 Yellow-faced Grassquit 29 White-rumped Sandpiper 63 Cuban Bullfinch 30 Least Tern 64 Western Spindalis 31 Royal Tern 65 Tawny-shouldered Blackbird 32 Rock Pigeon 66 Greater Antillean Grackle 33 White-crowned Pigeon 67 House Sparrow 34 Common Ground-Dove Flicker Bulletin # 20 - JUNE / JULY 2015 Long-term genetic study takes off! By Jen Moss Hi! My name is Jen Moss. I am a Biology student going into the second year of my Ph.D. program at Mississippi State University. I enrolled in the program after Dr. Mark Welch, whose lab specializes in evolutionary and conservation genetics of endangered Caribbean rock iguanas, offered me an intriguing project. Chiefly, it involves a closer examination of the Sister Islands Rock Iguana (Cyclura nubila caymanensis) - a critically endangered species only found on Cayman Brac and Little Cayman. Our goal is to use DNA from blood samples to investigate the gene flow within and between the Little Cayman and Cayman Brac populations, as well as the effects inbreeding depression may be having on these small populations. While we're at it, we hope Jen Moss and Jessica Harvey on Cayman Brac to learn more about unique nesting having caught a female Sister Island Rock Iguana behaviors and how these tie into for processing. dispersal patterns and use of island wide habitat. Flicker Bulletin # 20 – JUNE / JULY 2015 Marking all the animals we catch with Serious threats to these iguanas include sub-dermal PIT tags, as well as colorful habitat destruction and modification bead combinations on their crests (as it (particularly of valuable nest sites), road is done with the Blue Iguanas), will kills and predation by introduced feral facilitate our ability to track these mammals. animal's movements and behaviors over the years and it will help TRU in their Informed management is sorely needed general species management activities. to target critical habitat for protection, eliminate threats to recruitment of the I spent ten days on the Brac in March breeding population, and maintain this year doing some intensive sampling genetically viable stock populations in across the island which should shed the wild. Over the course of my Ph.D., I some light on the relationship between hope my research will make valuable the two populations. contributions towards conserving the Sister Islands’ populations© Y. J.as Rey I -workMillet Currently, I am going into my second closely with the TRU and local month on Little Cayman surveying volunteers to address these important communal nest sites like Preston Bay research questions. and trying to understand the factors Jen Moss that drive nest site selection. The blood samples I collect over several field seasons will be analyzed back at my TRU is happy to welcome Jen to the University to provide deeper insight into Cayman Islands after months of the severity of inbreeding amongst the preparations and we look forward to 2015 hatchlings and what toll this may cooperating on this exciting project over be taking on population recruitment. the years to come. Jen familiarizing herself with the resident Rock Iguanas around the museum. Flicker Bulletin # 20 – JUNE / JULY 2015 Housing Scheme Success! In Flicker #14, we described what seems attaching teddy bears to house walls to be most home-owners ultimate (yes, that did happen)…we built a box! nightmare; woodpeckers drilling nests in facades of walls, eaves and pillars Simply offering the birds an alternative alike. pre-built cavity seems to do the trick. This win-win situation holds us It is that time of the year again, in fact responsible for the off-the-scale we are at the height of the nesting development the island has seen in the season (April - June), and TRU is getting last couple of decades and boxes can be calls from all over the island. built at a very low cost. They are affixed to the wall of an affected home, in a The two endemic subspecies of shady spot, close to the main area of woodpecker: the West Indian woodpecker damage or can be attached Woodpecker (Melanerpes superciliaris to a tree close to the impacted area. By caymanensis) and the Northern Flicker keeping the birds on the property, new- (Colaptes auratus gundlachi) are comer birds will naturally be protected by the National Conservation discouraged from moving in. Law and somehow we just have to resolve the conflict and make up for the It is important to put up a box as soon loss of natural habitats, such as living as the bird shows an interest in your and dead tree cavities. house. As they become more established, the job only gets harder It would appear that we have found the and early signs of holes should be filled ultimate solution. Amidst testing out and painted immediately. Once a female detergents, predatory calls and has laid eggs in a cavity of your house figurines, constant disruption and the bird should be left alone to raise her startling, shining objects moving in the chicks. For easy recipe and box building wind, netting off eaves and walls and guidelines, click here or call: 743-5986. attaching Flicker Bulletin # 20 – JUNE / JULY 2015 shocking TRU hopes to see you at 'Too Few Blues‘ Fundraising for the Blue Iguana Recovery Programme Flicker Bulletin # 20 – JUNE / JULY 2015 KNOW YOUR NATIVES INKBERRY Inkberry (Scaevola plumieri), also called appearance and small white flowers.