Osa Peninsula Bird List
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Tapera Dromococcyx
HOST LIST OF AVIAN BROOD PARASITES - 3 - CUCULIFORMES; Neomorphidae Peter E. Lowther, Field Museum version 14 Sep 2011 Tapera Tapera Thunberg 1819, Handlingar Kungl Vetenskaps och vitterheetssamhället i Göteborg, 3, p. 1. American Striped Cuckoo, Tapera naevia (Linnaeus) 1766 Systema Naturae, ed. 12, p. 170. Distribution. – Neotropics. General life history information found in Friedmann 1933, Belcher and Smooker 1936, Sick 1953, Haverschmidt 1955, 1961, Wetmore 1968, Morton and Farabaugh 1979, Salvador 1982, Payne 2005, Pulgarín-R. et al. 2007 (see also additional references in host list below). Host list. – From Friedmann 1933; see also Davis 1940, Loetscher 1952, Sick 1953, 1993, Haverschmidt 1955, 1961, 1968, Wetmore 1968 1, Salvador 1982, Kiff and Williams 1978, Payne 2005. Brief mention of this cuckoo in studies of actual or potential hosts given by: Skutch 1969, Thomas 1983, Freed 1987 2 TYRANNIDAE White-headed Marsh-Tyrant, Arundinicola leucocephala tody-flycatcher, Todirostrum spp. * (Sick 1953, 1993 lists species as “apparently also” a host) flycatcher, Myiozetetes spp. * (Sick 1953, 1993 lists species as “apparently also” a host) FURNARIIDAE Chotoy Spinetail, Schoeniophylax phryganophila Sooty-fronted Spinetail, Synallaxis frontalis Azara's Spinetail, Synallaxis azarae 3 (includes superciliosa) Pale-breasted Spinetail, Synallaxis albescens Spix’s Spinetail, Synallaxis spixi Plain-crowned Spinetail, Synallaxis gujanensis Rufous-breasted Spinetail, Synallaxis erythrothorax Stripe-breasted Spinetail, Synallaxis cinnamomea Yellow-chinned Spinetail, Certhiaxis cinnamomeus Short-billed Castanero, Asthenes [pyrrholeuca] baeri Plain Thornbird, Phacellodomus [rufifrons] rufifrons Greater Thornbird, Phacellodomus ruber Red-eyed Thornbird, Phacellodomus erythrophthalmus Buff-fronted Foliage-Gleaner, Philydor rufus TROGLODYTIDAE Rufous-and-white Wren, Thryothorus rufalbus Plain W ren, Thryothorus modestus EMBERIZIDAE Black-striped Sparrow, Arremonops conirostris Dromococcyx Dromococcyx W ied-Neuwied 1832, Beitrage zur Naturgeschichte von Brasil. -
The Basilinna Genus (Aves: Trochilidae): an Evaluation Based on Molecular Evidence and Implications for the Genus Hylocharis
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Elsevier - Publisher Connector Revista Mexicana de Biodiversidad 85: 797-807, 2014 DOI: 10.7550/rmb.35769 The Basilinna genus (Aves: Trochilidae): an evaluation based on molecular evidence and implications for the genus Hylocharis El género Basilinna (Aves: Trochilidae): una evaluación basada en evidencia molecular e implicaciones para el género Hylocharis Blanca Estela Hernández-Baños1 , Luz Estela Zamudio-Beltrán1, Luis Enrique Eguiarte-Fruns2, John Klicka3 and Jaime García-Moreno4 1Museo de Zoología, Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México. Apartado postal 70- 399, 04510 México, D. F., Mexico. 2Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México. Apartado postal 70-275, 04510 México, D. F., Mexico. 3Burke Museum of Natural History and Culture, University of Washington, Box 353010, Seattle, WA, USA. 4Amphibian Survival Alliance, PO Box 20164, 1000 HD Amsterdam, The Netherlands. [email protected] Abstract. Hummingbirds are one of the most diverse families of birds and the phylogenetic relationships within the group have recently begun to be studied with molecular data. Most of these studies have focused on the higher level classification within the family, and now it is necessary to study the relationships between and within genera using a similar approach. Here, we investigated the taxonomic status of the genus Hylocharis, a member of the Emeralds complex, whose relationships with other genera are unclear; we also investigated the existence of the Basilinna genus. We obtained sequences of mitochondrial (ND2: 537 bp) and nuclear genes (AK-5 intron: 535 bp, and c-mos: 572 bp) for 6 of the 8 currently recognized species and outgroups. -
Molecular Phylogeny of Cuckoos Supports a Polyphyletic Origin of Brood Parasitism
Molecular phylogeny of cuckoos supports a polyphyletic origin of brood parasitism S. ARAGO N,*A.P.MéLLER,*J.J.SOLER & M. SOLER *Laboratoire d'Ecologie, CNRS-URA 258, Universite Pierre et Marie Curie, BaÃt. A, 7e eÂtage, 7, quai St. Bernard, Case 237, F-75252 Paris Cedex 05, France Departamento de BiologõÂa Animal y EcologõÂa, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain Keywords: Abstract brood parasitism; We constructed a molecular phylogeny of 15 species of cuckoos using cuculiformes; mitochondrial DNA sequences spanning 553 nucleotide bases of the cyto- cytochrome b; chrome b gene and 298 nucleotide bases of the ND2 gene. A parallel analysis DNA sequencing; for the cytochrome b gene including published sequences in the Genbank ND2. database was performed. Phylogenetic analyses of the sequences were done using parsimony, a sequence distance method (Fitch-Margoliash), and a character-state method which uses probabilities (maximum likelihood). Phenograms support the monophyly of three major clades: Cuculinae, Phaenicophaeinae and Neomorphinae-Crotophaginae. Clamator, a strictly parasitic genus traditionally included within the Cuculinae, groups together with Coccyzus (a nonobligate parasite) and some nesting cuckoos. Tapera and Dromococcyx, the parasitic cuckoos from the New World, appear as sister genera, close to New World cuckoos: Neomorphinae and Crotophaginae. Based on the results, and being conscious that a more strict resolution of the relationships among the three major clades is required, we postulate that brood parasitism has a polyphyletic origin in the Cuculiformes, with parasite species being found within the three de®ned clades. Evidence suggests that species within each clade share a common parasitic ancestor, but some show partial or total loss of brood parasitic behaviour. -
Topazes and Hermits
Trochilidae I: Topazes and Hermits Fiery Topaz, Topaza pyra Topazini Crimson Topaz, Topaza pella Florisuginae White-necked Jacobin, Florisuga mellivora Florisugini Black Jacobin, Florisuga fusca White-tipped Sicklebill, Eutoxeres aquila Eutoxerini Buff-tailed Sicklebill, Eutoxeres condamini Saw-billed Hermit, Ramphodon naevius Bronzy Hermit, Glaucis aeneus Phaethornithinae Rufous-breasted Hermit, Glaucis hirsutus ?Hook-billed Hermit, Glaucis dohrnii Threnetes ruckeri Phaethornithini Band-tailed Barbthroat, Pale-tailed Barbthroat, Threnetes leucurus ?Sooty Barbthroat, Threnetes niger ?Broad-tipped Hermit, Anopetia gounellei White-bearded Hermit, Phaethornis hispidus Tawny-bellied Hermit, Phaethornis syrmatophorus Mexican Hermit, Phaethornis mexicanus Long-billed Hermit, Phaethornis longirostris Green Hermit, Phaethornis guy White-whiskered Hermit, Phaethornis yaruqui Great-billed Hermit, Phaethornis malaris Long-tailed Hermit, Phaethornis superciliosus Straight-billed Hermit, Phaethornis bourcieri Koepcke’s Hermit, Phaethornis koepckeae Needle-billed Hermit, Phaethornis philippii Buff-bellied Hermit, Phaethornis subochraceus Scale-throated Hermit, Phaethornis eurynome Sooty-capped Hermit, Phaethornis augusti Planalto Hermit, Phaethornis pretrei Pale-bellied Hermit, Phaethornis anthophilus Stripe-throated Hermit, Phaethornis striigularis Gray-chinned Hermit, Phaethornis griseogularis Black-throated Hermit, Phaethornis atrimentalis Reddish Hermit, Phaethornis ruber ?White-browed Hermit, Phaethornis stuarti ?Dusky-throated Hermit, Phaethornis squalidus Streak-throated Hermit, Phaethornis rupurumii Cinnamon-throated Hermit, Phaethornis nattereri Little Hermit, Phaethornis longuemareus ?Tapajos Hermit, Phaethornis aethopygus ?Minute Hermit, Phaethornis idaliae Polytminae: Mangos Lesbiini: Coquettes Lesbiinae Coeligenini: Brilliants Patagonini: Giant Hummingbird Lampornithini: Mountain-Gems Tro chilinae Mellisugini: Bees Cynanthini: Emeralds Trochilini: Amazilias Source: McGuire et al. (2014).. -
Bird List Column A: 1 = 70-90% Chance Column B: 2 = 30-70% Chance Column C: 3 = 10-30% Chance
Colombia: Chocó Prospective Bird List Column A: 1 = 70-90% chance Column B: 2 = 30-70% chance Column C: 3 = 10-30% chance A B C Tawny-breasted Tinamou 2 Nothocercus julius Highland Tinamou 3 Nothocercus bonapartei Great Tinamou 2 Tinamus major Berlepsch's Tinamou 3 Crypturellus berlepschi Little Tinamou 1 Crypturellus soui Choco Tinamou 3 Crypturellus kerriae Horned Screamer 2 Anhima cornuta Black-bellied Whistling-Duck 1 Dendrocygna autumnalis Fulvous Whistling-Duck 1 Dendrocygna bicolor Comb Duck 3 Sarkidiornis melanotos Muscovy Duck 3 Cairina moschata Torrent Duck 3 Merganetta armata Blue-winged Teal 3 Spatula discors Cinnamon Teal 2 Spatula cyanoptera Masked Duck 3 Nomonyx dominicus Gray-headed Chachalaca 1 Ortalis cinereiceps Colombian Chachalaca 1 Ortalis columbiana Baudo Guan 2 Penelope ortoni Crested Guan 3 Penelope purpurascens Cauca Guan 2 Penelope perspicax Wattled Guan 2 Aburria aburri Sickle-winged Guan 1 Chamaepetes goudotii Great Curassow 3 Crax rubra Tawny-faced Quail 3 Rhynchortyx cinctus Crested Bobwhite 2 Colinus cristatus Rufous-fronted Wood-Quail 2 Odontophorus erythrops Chestnut Wood-Quail 1 Odontophorus hyperythrus Least Grebe 2 Tachybaptus dominicus Pied-billed Grebe 1 Podilymbus podiceps Magnificent Frigatebird 1 Fregata magnificens Brown Booby 2 Sula leucogaster ________________________________________________________________________________________________________ WINGS ● 1643 N. Alvernon Way Ste. 109 ● Tucson ● AZ ● 85712 ● www.wingsbirds.com (866) 547 9868 Toll free US + Canada ● Tel (520) 320-9868 ● Fax (520) -
Disaggregation of Bird Families Listed on Cms Appendix Ii
Convention on the Conservation of Migratory Species of Wild Animals 2nd Meeting of the Sessional Committee of the CMS Scientific Council (ScC-SC2) Bonn, Germany, 10 – 14 July 2017 UNEP/CMS/ScC-SC2/Inf.3 DISAGGREGATION OF BIRD FAMILIES LISTED ON CMS APPENDIX II (Prepared by the Appointed Councillors for Birds) Summary: The first meeting of the Sessional Committee of the Scientific Council identified the adoption of a new standard reference for avian taxonomy as an opportunity to disaggregate the higher-level taxa listed on Appendix II and to identify those that are considered to be migratory species and that have an unfavourable conservation status. The current paper presents an initial analysis of the higher-level disaggregation using the Handbook of the Birds of the World/BirdLife International Illustrated Checklist of the Birds of the World Volumes 1 and 2 taxonomy, and identifies the challenges in completing the analysis to identify all of the migratory species and the corresponding Range States. The document has been prepared by the COP Appointed Scientific Councilors for Birds. This is a supplementary paper to COP document UNEP/CMS/COP12/Doc.25.3 on Taxonomy and Nomenclature UNEP/CMS/ScC-Sc2/Inf.3 DISAGGREGATION OF BIRD FAMILIES LISTED ON CMS APPENDIX II 1. Through Resolution 11.19, the Conference of Parties adopted as the standard reference for bird taxonomy and nomenclature for Non-Passerine species the Handbook of the Birds of the World/BirdLife International Illustrated Checklist of the Birds of the World, Volume 1: Non-Passerines, by Josep del Hoyo and Nigel J. Collar (2014); 2. -
Checklistccamp2016.Pdf
2 3 Participant’s Name: Tour Company: Date#1: / / Tour locations Date #2: / / Tour locations Date #3: / / Tour locations Date #4: / / Tour locations Date #5: / / Tour locations Date #6: / / Tour locations Date #7: / / Tour locations Date #8: / / Tour locations Codes used in Column A Codes Sample Species a = Abundant Red-lored Parrot c = Common White-headed Wren u = Uncommon Gray-cheeked Nunlet r = Rare Sapayoa vr = Very rare Wing-banded Antbird m = Migrant Bay-breasted Warbler x = Accidental Dwarf Cuckoo (E) = Endemic Stripe-cheeked Woodpecker Species marked with an asterisk (*) can be found in the birding areas visited on the tour outside of the immediate Canopy Camp property such as Nusagandi, San Francisco Reserve, El Real and Darien National Park/Cerro Pirre. Of course, 4with incredible biodiversity and changing environments, there is always the possibility to see species not listed here. If you have a sighting not on this list, please let us know! No. Bird Species 1A 2 3 4 5 6 7 8 Tinamous Great Tinamou u 1 Tinamus major Little Tinamou c 2 Crypturellus soui Ducks Black-bellied Whistling-Duck 3 Dendrocygna autumnalis u Muscovy Duck 4 Cairina moschata r Blue-winged Teal 5 Anas discors m Curassows, Guans & Chachalacas Gray-headed Chachalaca 6 Ortalis cinereiceps c Crested Guan 7 Penelope purpurascens u Great Curassow 8 Crax rubra r New World Quails Tawny-faced Quail 9 Rhynchortyx cinctus r* Marbled Wood-Quail 10 Odontophorus gujanensis r* Black-eared Wood-Quail 11 Odontophorus melanotis u Grebes Least Grebe 12 Tachybaptus dominicus u www.canopytower.com 3 BirdChecklist No. -
Wild Turkey Education Guide
Table of Contents Section 1: Eastern Wild Turkey Ecology 1. Eastern Wild Turkey Quick Facts………………………………………………...pg 2 2. Eastern Wild Turkey Fact Sheet………………………………………………….pg 4 3. Wild Turkey Lifecycle……………………………………………………………..pg 8 4. Eastern Wild Turkey Adaptations ………………………………………………pg 9 Section 2: Eastern Wild Turkey Management 1. Wild Turkey Management Timeline…………………….……………………….pg 18 2. History of Wild Turkey Management …………………...…..…………………..pg 19 3. Modern Wild Turkey Management in Maryland………...……………………..pg 22 4. Managing Wild Turkeys Today ……………………………………………….....pg 25 Section 3: Activity Lesson Plans 1. Activity: Growing Up WILD: Tasty Turkeys (Grades K-2)……………..….…..pg 33 2. Activity: Calling All Turkeys (Grades K-5)………………………………..…….pg 37 3. Activity: Fit for a Turkey (Grades 3-5)…………………………………………...pg 40 4. Activity: Project WILD adaptation: Too Many Turkeys (Grades K-5)…..…….pg 43 5. Activity: Project WILD: Quick, Frozen Critters (Grades 5-8).……………….…pg 47 6. Activity: Project WILD: Turkey Trouble (Grades 9-12………………….……....pg 51 7. Activity: Project WILD: Let’s Talk Turkey (Grades 9-12)..……………..………pg 58 Section 4: Additional Activities: 1. Wild Turkey Ecology Word Find………………………………………….…….pg 66 2. Wild Turkey Management Word Find………………………………………….pg 68 3. Turkey Coloring Sheet ..………………………………………………………….pg 70 4. Turkey Coloring Sheet ..………………………………………………………….pg 71 5. Turkey Color-by-Letter……………………………………..…………………….pg 72 6. Five Little Turkeys Song Sheet……. ………………………………………….…pg 73 7. Thankful Turkey…………………..…………………………………………….....pg 74 8. Graph-a-Turkey………………………………….…………………………….…..pg 75 9. Turkey Trouble Maze…………………………………………………………..….pg 76 10. What Animals Made These Tracks………………………………………….……pg 78 11. Drinking Straw Turkey Call Craft……………………………………….….……pg 80 Section 5: Wild Turkey PowerPoint Slide Notes The facilities and services of the Maryland Department of Natural Resources are available to all without regard to race, color, religion, sex, sexual orientation, age, national origin or physical or mental disability. -
Tinamiformes – Falconiformes
LIST OF THE 2,008 BIRD SPECIES (WITH SCIENTIFIC AND ENGLISH NAMES) KNOWN FROM THE A.O.U. CHECK-LIST AREA. Notes: "(A)" = accidental/casualin A.O.U. area; "(H)" -- recordedin A.O.U. area only from Hawaii; "(I)" = introducedinto A.O.U. area; "(N)" = has not bred in A.O.U. area but occursregularly as nonbreedingvisitor; "?" precedingname = extinct. TINAMIFORMES TINAMIDAE Tinamus major Great Tinamou. Nothocercusbonapartei Highland Tinamou. Crypturellus soui Little Tinamou. Crypturelluscinnamomeus Thicket Tinamou. Crypturellusboucardi Slaty-breastedTinamou. Crypturellus kerriae Choco Tinamou. GAVIIFORMES GAVIIDAE Gavia stellata Red-throated Loon. Gavia arctica Arctic Loon. Gavia pacifica Pacific Loon. Gavia immer Common Loon. Gavia adamsii Yellow-billed Loon. PODICIPEDIFORMES PODICIPEDIDAE Tachybaptusdominicus Least Grebe. Podilymbuspodiceps Pied-billed Grebe. ?Podilymbusgigas Atitlan Grebe. Podicepsauritus Horned Grebe. Podicepsgrisegena Red-neckedGrebe. Podicepsnigricollis Eared Grebe. Aechmophorusoccidentalis Western Grebe. Aechmophorusclarkii Clark's Grebe. PROCELLARIIFORMES DIOMEDEIDAE Thalassarchechlororhynchos Yellow-nosed Albatross. (A) Thalassarchecauta Shy Albatross.(A) Thalassarchemelanophris Black-browed Albatross. (A) Phoebetriapalpebrata Light-mantled Albatross. (A) Diomedea exulans WanderingAlbatross. (A) Phoebastriaimmutabilis Laysan Albatross. Phoebastrianigripes Black-lootedAlbatross. Phoebastriaalbatrus Short-tailedAlbatross. (N) PROCELLARIIDAE Fulmarus glacialis Northern Fulmar. Pterodroma neglecta KermadecPetrel. (A) Pterodroma -
Marine Mammals and Sea Turtles of the Mediterranean and Black Seas
Marine mammals and sea turtles of the Mediterranean and Black Seas MEDITERRANEAN AND BLACK SEA BASINS Main seas, straits and gulfs in the Mediterranean and Black Sea basins, together with locations mentioned in the text for the distribution of marine mammals and sea turtles Ukraine Russia SEA OF AZOV Kerch Strait Crimea Romania Georgia Slovenia France Croatia BLACK SEA Bosnia & Herzegovina Bulgaria Monaco Bosphorus LIGURIAN SEA Montenegro Strait Pelagos Sanctuary Gulf of Italy Lion ADRIATIC SEA Albania Corsica Drini Bay Spain Dardanelles Strait Greece BALEARIC SEA Turkey Sardinia Algerian- TYRRHENIAN SEA AEGEAN SEA Balearic Islands Provençal IONIAN SEA Syria Basin Strait of Sicily Cyprus Strait of Sicily Gibraltar ALBORAN SEA Hellenic Trench Lebanon Tunisia Malta LEVANTINE SEA Israel Algeria West Morocco Bank Tunisian Plateau/Gulf of SirteMEDITERRANEAN SEA Gaza Strip Jordan Suez Canal Egypt Gulf of Sirte Libya RED SEA Marine mammals and sea turtles of the Mediterranean and Black Seas Compiled by María del Mar Otero and Michela Conigliaro The designation of geographical entities in this book, and the presentation of the material, do not imply the expression of any opinion whatsoever on the part of IUCN concerning the legal status of any country, territory, or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. The views expressed in this publication do not necessarily reflect those of IUCN. Published by Compiled by María del Mar Otero IUCN Centre for Mediterranean Cooperation, Spain © IUCN, Gland, Switzerland, and Malaga, Spain Michela Conigliaro IUCN Centre for Mediterranean Cooperation, Spain Copyright © 2012 International Union for Conservation of Nature and Natural Resources With the support of Catherine Numa IUCN Centre for Mediterranean Cooperation, Spain Annabelle Cuttelod IUCN Species Programme, United Kingdom Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the sources are fully acknowledged. -
Pipridae) and of the Cotingas (Cotingidae) Based on Morphology
OCCASIONAL PAPERS OF THE MUSEUM OF ZOOLOGY THE UNIVERSITY OF MICHIGAN A TEST OF THE MONOPHYLY OF THE MANAKINS (PIPRIDAE) AND OF THE COTINGAS (COTINGIDAE) BASED ON MORPHOLOGY ABSTRACT.-Pmm, Richard 0. A test of the monophyly of the manakins (Pipridae) and of the cotingas (Cotingidae) based on morphology. Occ. Pap. Mus. Zool., Uniu. Michigan, 723:I-44,6jigs. A phylogenetic analysis of the Tyr- annoidea is performed as a test of the monophyly of the manakins (Pipri- dae) and of the cotingas (Cotingidae). The 12 morphological characters surveyed include the traditional characters used to define the families and other morphological features taken from observations of tyrannoid syr- inges and hindlimb arteries. Five traditional characters are phylogeneti- cally uninformative. The remaining seven characters support 25 maxi- mally parsimonious phylogenetic hypotheses of length 10 (CI = 0.70). A strict consensus tree based on these trees has few resolved clades, but indicates that neither the Pipridae nor the Cotingidae as traditionally defined is monophyletic. Six currently recognized genera of Pipridae- Schiffornis, Sapayoa, Piprites, Neopipo, Neopelma, and Tyranneutes-share de- rived morphological characters with other, non-piprid tyrannoids. The other eleven piprid genera-4hloropip0, Xenopipo, Antilophia, Heterocercus, Machaeropterus, Manacus, Corapipo, Ilicura, Masiur, Chiroxiphia, and Pipra- form a clade diagnosed by the dorsal fusion of the B1-2 syringeal sup- porting elements. A large clade including most cotingids is supported by a derived syringeal muscle character and provides evidence of the mono- phyly of the cotingids, but this character conflicts with other derived morphological features. Additional data are required to resolve many portions of tyrannoid higher-level phylogeny. -
Baja California Sur, Mexico)
Journal of Marine Science and Engineering Article Geomorphology of a Holocene Hurricane Deposit Eroded from Rhyolite Sea Cliffs on Ensenada Almeja (Baja California Sur, Mexico) Markes E. Johnson 1,* , Rigoberto Guardado-France 2, Erlend M. Johnson 3 and Jorge Ledesma-Vázquez 2 1 Geosciences Department, Williams College, Williamstown, MA 01267, USA 2 Facultad de Ciencias Marinas, Universidad Autónoma de Baja California, Ensenada 22800, Baja California, Mexico; [email protected] (R.G.-F.); [email protected] (J.L.-V.) 3 Anthropology Department, Tulane University, New Orleans, LA 70018, USA; [email protected] * Correspondence: [email protected]; Tel.: +1-413-597-2329 Received: 22 May 2019; Accepted: 20 June 2019; Published: 22 June 2019 Abstract: This work advances research on the role of hurricanes in degrading the rocky coastline within Mexico’s Gulf of California, most commonly formed by widespread igneous rocks. Under evaluation is a distinct coastal boulder bed (CBB) derived from banded rhyolite with boulders arrayed in a partial-ring configuration against one side of the headland on Ensenada Almeja (Clam Bay) north of Loreto. Preconditions related to the thickness of rhyolite flows and vertical fissures that intersect the flows at right angles along with the specific gravity of banded rhyolite delimit the size, shape and weight of boulders in the Almeja CBB. Mathematical formulae are applied to calculate the wave height generated by storm surge impacting the headland. The average weight of the 25 largest boulders from a transect nearest the bedrock source amounts to 1200 kg but only 30% of the sample is estimated to exceed a full metric ton in weight.